Question

Identify the equation of this line (1,6) and (4,18)​

Answer 1

y = 4x +2

Explanation:

The slope is the change in y divided by the change in x:

(18 -6)/(4 -1) = 12/3 = 4

When we look at the values of 4x and y, we see they differ by 2. For the first given point, 4·1=4, but y=6, so y is 2 more than 4x.

y = 4x + 2