Question

An object moving in a straight line passes through the points (3, 0) and (2, 2). The object also passes through the point (0, a).

Calculate the value of a.

Answer 1

colinear pts (meaning gradient is same throughout)

Explanation:

since grad is same,

(2-0)/(2-3) = (a-0)/(0-3)

-2 = a/-3

6 = a (multiply both sides by -3)