Your slope is m = -1/3.
Explanation:
Using the slope formula
![(y2-y1)/(x2-x1)](https://img.qammunity.org/2022/formulas/mathematics/high-school/o9cj8rzlmrloqj7wwadpz47qesxrup4k3e.png)
Select two points on the graph
I chose (-10, 6) and (-4,4)
Plug the numbers into the formula
Y2=6, Y1=4, X2=-10, X1=-4.
![(6-4)/(-10-(-4))](https://img.qammunity.org/2022/formulas/mathematics/high-school/5a4bt2p5yv74szc5aumgk123gwu8m22mp4.png)
Simplify
=
or -0.33333333333333
Finally, find your b. Which is about 2.3