Answer:
f(x)=-
x+9
Step-by-step explanation:
Use the slope formula and slope intercept formula form y=mx + b to find the equation
Answer:
Step-by-step explanation:
If two lines are parallel then they will have the same slope. So all you need to do is find the slope of the line that joins the two given points. You can use the slope formula
. You can also graph the two points and use rise over run. 
C: 1 and 3 because if you fold it, it will be even
Answer:
Step-by-step explanation:
2x < 40 - 10
2x < 30
x < 30/2
x < 15