Question

If the point (a + 1, 3a – 1) lies on the line passing through the points (3, 5) and (2, 2), then how many values of a are possible?

A. Zero
B. Exactly one
C. Exactly two
D. More than two

Answer 1

First: Can you find the slope of the line by using these two points?

Answer 2

m=y_2-y1 / x_2-x_1

Answer 3

3

Answer 4

Good, now take one of the known point, and find the slope by using the point (a + 1, 3a – 1) l