Pls help for a test.

D) y = 1.25x

Step-by-step explanation:

Let's find the slope between your two points.

(12,15); (15,18.75)

(x1, y1) = (12, 15)

(x2, y2) = (15, 18.75)

Use the slope formula:

m = y2−y1 / x2−x1

= 18.75 − 15 / 15−12

= 3.75 / 3

= 1.25

m=1.25

Place that into y = mx + b

Answer is y = 1.25x

hope this helps and is right :)

just sum

10 + 10 = 20