Answer:
7
Step-by-step explanation:
13=3x-x/2
13=5x/2
26=5x
X=5.2
In the equation you have to replace all x's with -1
f (-1) = (-1)^2 - 8(-1) +5
f (-1) = 1 + 8 + 5
f (-1) = 14
the f(-1) stand for the function of -1. it is also equivalent to y
The equation would look like
Y=-4x+7
Y=mx+b
As a mixed number, 16 1/4, as a fraction, 65/4.