Question

Answer in POINT-SLOPE FORM:

Complete the point-slope equation of the line through (1,3) and (5,1) Use exact numbers!

Answer 1

y - 3 = (1/2)(x - 1)

Explanation:

As we go from (1, 3) to (5, 1), we see that x (the run) increases by 4 and y (the rise) decreases by 2. Hence, the slope is m = rise / run = 2/4, or m = 1/2.

Then the desired point slope equation is y - 3 = (1/2)(x - 1).