Unit 2 homework 4 all things algebra

The graph shows the rate at which paint is used to paint a wall. enter values to complete each statement below based on the graph. when 1 gallon of paint has been used, ( # ) square feet of the wall will be painted. the unit rate is ( # )square feet per gallon.

Explain how you can use the associative property to evaluate (7x50)x4.

Which describes the difference between the graph of f(x)=x^2 and g(x)=-(x^2-2)