Coordinate Geometry

Find the gradient of the straight line joining (6,4) and (-3, -5)

• 1

• -1

Find the length of the line joining (11,19) and (3,4).

• 17

• 8

• 15

• 19

Find the coordinates of the mid-point of (-6,10) and (-10, 8)

• (-8,1)

• (-8,9)

• (2,1)

• (8,9)

Find the equation of line with y-intercept (0,-9) and parallel to the line y-5x=20

• y=5x-9

• y=5x-0

• y=5x+9

• y=5x+20

Find the equation of each of the straight lines with gradient = 2 and passes through (5,4)

• y = 5x-4

• y = 2x-1

• y = 2x-6

• y = 2x-14

The straight-line 6y = kx + 24 is parallel to the line 7x + 3y = 12.

Find the value of k.

• 14

• 7

• 3

• 6

The point (3,-10) lies on the line y = 5x + k. Find the value of k.

• 5

• -5

• -10

• -25

A straight line 5y = kx + h passes through the points (-2,10) and (6,26). Find the value of k and of h.

• 2 and 70

• -2 and 14

• -2 and 70

• 2 and 14

The line joining A (a, -5) to B(10,20) is perpendicular to the line joining C (17,25) to B. Find the value of a.

• 10

• -5

• 5

• -10