Graphs of Functions  Exercise 1
For the function f(x) = x^{4}  4x^{2}, solve x^{4}
 4x^{2} = 0 in order to find the xintercepts, justifying
steps in finding these intercepts. Find points on each side of each
xintercept, placing values in the table below. Graph this
function on your graphing calculator. Be able to explain why f(x) is
even, show the points you generated, and show a sketch of the graph.
Is f(x) an even function? Why or why not?
STATEMENT 
JUSTIFICATION 
f(x) = x^{4}  4x^{2}
Solve x^{4}  4x^{2} = 0

Given

