Answer:
x= 9
Step-by-step explanation:
The answer to your questions is 80%
Sub in -7 for x to get 2(-7)+8 which is -14+8=-6. f(-7)= -6
Answer:
Slope=4/5
Step-by-step explanation:
This is the formula to find the slope of lines:
y2-y1/x2-x1 (look it up to learn more)
9-1/1+9
8/10
4/5
The slope is 4/5
Hope this helps :)
The answer will be A. Hope it help!