Question

Which choice is a correct equation for the graph shown below?

A y = 2x + 20
B. y = 3x + 1
C. y = 10x + 5
D. y = 15x + 35

Answer 1

C. y = 10x + 5

Explanation:

`y = mx + c \\ \\ m = (y2 - y1)/(x2 - x1 \\ ) \\ m = (25 - 5)/( 2 - 0) \\ m = (20)/(2) \\ m = 10 \\ y = 10x + c \\ y = 10x + 5`

c = the y-intercept

Answer 2

Option C - y=10x + 5

Explanation:

All the options are in the y =mx+c form.

The gradient is 10 and the y-intercept is 5

so our answer it option c