Function Evaluation, Rule of 4
On the right are four functions, each using one of the function representations we've learned about in this lesson.
Use functions, $f(x)$, $g(x)$, $h(x)$ and $p(t)$ to answer the questions on the left.
Evaluate $f(5)$
f(5) =
$f(x)$
Determine $x$ when $f(x) = 0$
x =
Evaluate $g(7)$
g(7) =
Determine $x$ when $g(x) = 23$
x =
Evaluate $h(-8)$
h(-8) =
Determine $x$ when $h(x) = 174$
x =
Evaluate $p(23)$
p(23) =
Determine $t$ when $p(t) = -5$
t =
g(x): \{(-17,23), (-16,67), (-12,35), (-5,-9), (7,40), (23,81),
(29,15), (31,7), (44,26), (82,1)}
$\begin{array}{|c|c|}
\hline
t & p(t) \\
\hline
-17 & 70 \\
-16 & 23 \\
-12 & 87 \\
-5 & 89 \\
7 & 35 \\
23 & 90 \\
29 & 48 \\
31 & 49 \\
44 & -5 \\
82 & 117 \\
\hline
\end{array}$
h(x) = -16x - 2
