Answer: 6
Step-by-step explanation:
Slope is found by doing:
![\frac{y_1 - y}{x_1 - x}](https://tex.z-dn.net/?f=%5Cfrac%7By_1%20-%20y%7D%7Bx_1%20-%20x%7D)
(x1 and y1 must be from the same ordered pair and x and y must be from the same ordered pair, however point (x1,y1) and (x,y) can be used interchangeably)
Let us say that (x1,y1) is (3,18)
And (x,y) is (5,30)
![\frac{18 - 30}{3 - 5} = \frac{-12}{-2} = 6](https://tex.z-dn.net/?f=%5Cfrac%7B18%20-%2030%7D%7B3%20-%205%7D%20%3D%20%5Cfrac%7B-12%7D%7B-2%7D%20%3D%206)
Find f(-2) f(x)=9x^2-5x+2
f(-2) means replace x in the equation with -2:
f(-2)=9(-2)^2-5(-2)+2
= 9(4) +10 + 2
= 36 +10 + 2
= 48
f(-2) = 48
Answer:
all work is shown and pictured