Answer:
C
Step-by-step explanation:
The function is nonlinear because the slope is not constant.
Answer:
Step-by-step explanation:
Sometimes. If the decimal never repeats itself and never ends, like pi, it is irrational. But if the decimal is .5 or .333333333333333... it either terminates (ends) or repeats itself forever, making it rational.
Answer:

Step-by-step explanation:
So the point-slope formula looks like this: 
= any y point on the line
= any x point on the line
= the slope
And hey, look, we're already given all that information!
So we can just plug those values into the equation:

(*note: It's a +3.2 because 3.2 was negative in the first place, and -(-x) = +x)