Coordinate Systems (Edexcel International A Level (IAL) Further Maths: Further Pure 1): Exam Questions

Exam code: YFM01

3 hours19 questions
1a
1 mark

A parabola P has cartesian equation y squared equals 28 x.The point S is the focus of the parabola P.

Write down the coordinates of the point S.

1b
4 marks

Points Aand B lie on the parabola P. The line A B is parallel to the directrix of P and cuts the x-axis at the midpoint of O S, where O is the origin.

Find the exact area of triangle A B S.

2a
1 mark

The rectangular hyperbola H has equation x y equals 25

Verify that, for t not equal to 0 the point P blank space open parentheses 5 t comma   5 over t close parentheses is a general point on H.

2b
5 marks

The point Aon H has parameter t equals 1 half

Show that the normal to H at the point Ahas equation

8 y space minus space 2 x space minus space 75 space equals space 0

2c
4 marks

This normal at Ameets H again at the point B.

Find the coordinates of B.

3a
4 marks

The rectangular hyperbola H has equation x y equals c squared where c is a positive constant.

The point P blank space open parentheses c t comma   c over t close parentheses , where t space greater than space 0 , lies on H

Use calculus to show that an equation of the normal to H at P is

t cubed x minus t y equals c left parenthesis t to the power of 4 minus 1 right parenthesis

3b
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4 marks

The parabola C has equation y squared equals 6 x

The normal to H at the point with coordinates left parenthesis 8 comma space 2 right parenthesis meets C at the point Q where y space greater than space 0

Determine the exact coordinates of Q

3c
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5 marks

Given that

  • the point R is the focus of C

  • the line l is the directrix of C

  • the line through Q and R meets l at the point S

determine the exact length of Q S

4a
4 marks

The hyperbola H has equation x y equals c squared where c is a positive constant.

The point P blank space open parentheses c t comma   c over t close parentheses, where t space greater than space 0, lies on H.

The tangent to H at P meets the x-axis at the point A and meets the y-axis at the point B.

Determine, in terms of c and t,

(i) the coordinates of A,

(ii) the coordinates of B.

4b
2 marks

Given that the area of triangle A O B, where Ois the origin, is 90 square units,

determine the value of c, giving your answer as a simplified surd.

5a
4 marks

The parabola C has equation y squared equals 4 over 3 x

The point P blank space space open parentheses 1 third t squared comma   2 over 3 t close parentheses , where t not equal to 0,lies on C.

Use calculus to show that the normal to C at P has equation

3 t x plus 3 y equals t cubed plus 2 t

5b
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4 marks

The normal to C at the point where t space equals space 9 meets C again at the point Q.

Determine the exact coordinates of Q.

6a
4 marks

The rectangular hyperbola H has Cartesian equation x y space equals space 9.

The point P with coordinates open parentheses 3 t comma   3 over t close parentheses , where t not equal to 0 , lies on H.

Use calculus to determine an equation for the normal to H at the point P.

Give your answer in the form t y minus t cubed x equals straight f left parenthesis t right parenthesis.

6b
3 marks

Given that t equals 2

determine the coordinates of the point where the normal meets H again.

Give your answer in simplest form.

7a
1 mark

The point P left parenthesis 2 p squared comma   4 p right parenthesis lies on the parabola with equation y squared equals 8 x

Show that the point Q blank space open parentheses 2 over p squared comma   fraction numerator negative 4 over denominator p end fraction close parentheses , where p not equal to 0, lies on the parabola.

7b
4 marks

Show that the chord P Q passes through the focus of the parabola.

7c
8 marks

The tangent to the parabola at P and the tangent to the parabola at Q meet at the point R

Determine, in simplest form, the coordinates of Determine R

8a
1 mark

In this question you must show all stages of your working.

Solutions relying entirely on calculator technology are not acceptable.

The rectangular hyperbola H has equation x y space equals space 20

The point P blank space open parentheses 2 t square root of a comma   fraction numerator 2 square root of a over denominator t end fraction close parentheses, t not equal to 0, where a is a constant, is a general point on H

State the value of a

8b
4 marks

Show that the normal to H at the point P has equation

t y minus t cubed x minus 2 square root of 5 open parentheses 1 minus t to the power of 4 close parentheses equals 0

8c
4 marks

The points Aand B lie on H

The point Ahas parameter t space equals space c and the point B has parameter t equals negative fraction numerator 1 over denominator 2 c end fraction , where c is a constant.

The normal to H at Ameets H again at B

Determine the possible values of c

9a
3 marks

A parabola C has equation y squared equals 4 a x where a is a positive constant.

The point S is the focus of C

The line l subscript 1 with equation y space equals space k where k is a positive constant, intersects C at the point P

Show that

P S equals fraction numerator k squared plus 4 a squared over denominator 4 a end fraction

9b
3 marks

The line l subscript 2 passes through P and intersects the directrix of C on the x-axis.

The line l subscript 2 intersects the y-axis at the point A

Show that the y coordinate of Ais fraction numerator 4 a squared k over denominator k squared plus 4 a squared end fraction

9c
5 marks

The line l subscript 1 intersects the directrix of C at the point B

Given that the areas of triangles B P A and O S P , where O is the origin, satisfy the ratio

area B P A colon area O S P equals 4 k squared colon 1

determine the exact value of a

10a
4 marks

The parabola C has equation y squared equals 36 x

The point P left parenthesis 9 t squared comma space 18 t right parenthesis, where t not equal to 0, lies on C

Use calculus to show that the normal to C at P has equation

y plus t x equals 9 t cubed plus 18 t

10b
4 marks

Hence find the equations of the two normals to C which pass through the point (54, 0), giving your answers in the form y space equals space p x space plus space q where p and q are constants to be determined.

10c
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3 marks

Given that

  • the normals found in part (b) intersect the directrix of C at the points Aand B

  • the point F is the focus of C

determine the area of triangle A F B

11a
1 mark

The parabola C has equation

y squared equals 18 x

The point Sis the focus of C

Write down the coordinates of S

11b
4 marks

Determine the exact perimeter of the triangle O P S , where O is the origin.

Give your answer in simplest form.

12a
4 marks

In this question you must show all stages of your working. Solutions relying entirely on calculator technology are not acceptable.

The rectangular hyperbola H has equation

x y space equals space 36

The point P left parenthesis 4 comma space 9 right parenthesis lies on H

Show, using calculus, that the normal to H at P has equation

4 x space minus space 9 y space plus space 65 space equals space 0

12b
5 marks

The normal to H at P crosses H again at the point Q

Determine an equation for the tangent to H at Q , giving your answer in the form y space equals space m x space plus space c where mand c are rational constants.

13a
4 marks

The curve H has equation

x y equals a squared      x greater than 0

where a is a positive constant.

The line with equation y space equals space k x, where k is a positive constant, intersects H at the point P.

Use calculus to determine, in terms of a and k, an equation for the tangent to Hat P .

13b
2 marks

The tangent to H at P meets the x-axis at the point Aand meets the y-axis at the point B.

Determine the coordinates of Aand the coordinates of B, giving your answers in terms of a and k.

13c
2 marks

Hence show that the area of triangle A O B , where o is the origin, is independent of k.

14a
3 marks

The parabola C has equation y squared equals 20 x

The point P on C has coordinates left parenthesis 5 p squared comma   10 p right parenthesis where p is a non-zero constant.

Use calculus to show that the tangent to C at P has equation

p y minus x equals 5 p squared

14b
1 mark

The tangent to C at P meets the y‑axis at the point A.

Write down the coordinates of A.

14c
1 mark

The point S is the focus of C.

Write down the coordinates of S.

14d
5 marks

The straight line l subscript 1 passes through A and S.

The straight line l subscript 2 passes through O and P, where O is the origin.

Given that l subscript 1 and l subscript 2 intersect at the point B,

show that the coordinates of B satisfy the equation

2 x squared plus y squared equals 10 x

15a
4 marks

A rectangular hyperbola H has equation x y space equals space 25

The point P blank open parentheses 5 t comma   5 over t close parentheses , t not equal to 0 , is a general point on H.

Show that the equation of the tangent to H at P is t squared y plus x equals 10 t

15b
4 marks

The distinct points Q and R lie on H. The tangent to H at the point Q and the tangent to H at the point R meet at the point left parenthesis 15 comma space minus 5 right parenthesis.

Find the coordinates of the points Q and R.

16a
5 marks

The parabola C has Cartesian equation y squared equals 8 x

The point P left parenthesis 2 p squared comma 4 p right parenthesis and the point Q left parenthesis 2 q squared comma 4 q right parenthesis, where p comma q not equal to 0 , p not equal to q, are points on C.

Show that an equation of the normal to C at P is

y plus p x equals 2 p cubed plus 4 p

16b
1 mark

Write down an equation of the normal to C at Q

16c
5 marks

The normal to C at P and the normal to C at Q meet at the point N

Show that N has coordinates

open parentheses 2 left parenthesis p squared plus p q plus q squared plus 2 right parenthesis comma space minus 2 p q left parenthesis p plus q right parenthesis close parentheses

16d
5 marks

The line O N, where O is the origin, is perpendicular to the line P Q.

Find the value of left parenthesis p plus q right parenthesis squared minus 3 p q

17a
3 marks

The hyperbola H has Cartesian equation x y space equals space 25

The parabola P has parametric equations x equals 10 t squared comma    y equals 20 t

The hyperbola H intersects the parabola P at the point A.

Use algebra to determine the coordinates of A.

17b
5 marks

The point B with coordinates left parenthesis 10 comma space 20 right parenthesis lies on P.

Find an equation for the normal to P at B .

Give your answer in the form a x space plus space b y space plus space c space equals space 0, where a, b and c are integers to be determined.

17c
6 marks

Use algebra to determine, in simplest form, the exact coordinates of the points where this normal intersects the hyperbola H.

18a
5 marks

The rectangular hyperbola H has equation x y equals 64

The point P blank space open parentheses 8 p comma   8 over p close parentheses, where p not equal to 0 , lies on H.

Use calculus to show that the normal to H at P has equation

p cubed x minus p y equals 8 left parenthesis p to the power of 4 minus 1 right parenthesis

18b
4 marks

The normal to H at P meets H again at the point Q

Determine, in terms of p, the coordinates of Q, giving your answers in simplest form.

19a
4 marks

The parabola C has equation y squared equals 4 a x, where a is a positive constant.

The line l with equation 3 x minus 4 y plus 48 equals 0 is a tangent to C at the point P.

Show that a space equals space 9

19b
2 marks

Hence determine the coordinates of P.

19c
4 marks

Given that the point S is the focus of C and that the line l crosses the directrix of C at the point A,

determine the exact area of triangle P S A.