Practice
1. Consider the functions k(x)=x-1, m(x) = x + 2, n(x) = x - 3, and f(x) = k(x) m(x) - n(x).
a. Graph k(x), m(x), and n(x).
b. Determine the degree of the function f(x). Explain
your reasoning.
c. Determine the zeros of f(x). Explain your reasoning.
d. Determine the intervals over which the value of f(x) is
positive. Determine the intervals over which the value
of f(x) is negative. Explain your reasoning.
e. Sketch f(x).
AY
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