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3 Coordinate Geometry

Answer all questions.
If working is needed for any question, write it clearly in the spaces provided below that question.

Coordinate geometry

1 Find the gradient of the line that passes through points (–7, –1) and (–2, –7).

[2]

2 Find the distance between point A (0, 1) and point B (6, 9).

[3]
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The midpoint of the line segment joining (4, –7) and (10, y) is (7, 1). What is the value of y?

[2]
4 The diagram shows the straight line l, which passes through the points (–7, 10) and (–1, 0).

(a) Find the equation of line l, in the form of ay + bx = c. y
(–7, 10)

x
–1

[3]

Chapter 3 Coordinate Geometry 63

Chapter 3.indd 63 15/03/2022 10:28 AM