Step 1:

(a) The functions are and .

First draw the coordinate plane.

Draw the functions and .

Step 2:

The functions are and .

Solve the equation  by factorization.    

or

  or                               

The solutions are    or  .

Substitute the  values in linear function .

Step 3:

(c) The functions are and .

From the values are or  and or

The intersection points are and .

Locate the points on the graph and .

Step 4:

The functions are and .

Shade the region on the graph

The solutions are or and the results of  , and are shown in the graph.

.