Answer:
y = -2x +6
Step-by-step explanation:
Need to find b, we have 2 points (0,b), (-1,-4) and a slope m = -2
m = (y2 - y1) / (x2 -x1)
-2 = (-4 - b) / (-1 - 0)
Solve for b
-2(-1 - 0) = -4 - b
2 = -4 - b
2 + 4 = b
6 = b
b = 6
I think you're supposed to substitute -5 into x. So now the equation is
f(-5)= 6(-5) +7.
f(-5)= -30+7
f(-5)= -23
As a result, the value of f(-5) is -23
If you multiple the net by 2, you will get 2720, and dividing it from 940, you will get 35%. B is the correct answer. :)
