CPM Homework Help : CCG Problem 8-120

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Home > CCG > Chapter 8 > Lesson 8.3.3 > Problem 8-120

8-120.

Examine the graph of $f\left(x\right)$ at right. Use the graph to find the following values.

$f(1)$
Hint (a)
$f\left(1\right)=$ the value of $y$ on the graph when $x = 1$ .
Answer (a):
$f\left(1\right)=-3$

$f(0)$
Hint (b):
Locate $x = 0$ on the graph. Find the $y$ -coordinate for the point $(0, y)$ . This is the value of $f(0)$ .

$x \text{ if } f(x) = 4$
Hint (c):
$f(x) = 4$ is the equivalent of $y = 4$ on the graph.
Therefore, look for the values of $x$ when $y = 4$ .

$x \text{ if } f(x) = 0$
Hint (d):
Find the values of $x$ when $y = 0$ , so look for the points $(x, 0)$ on the graph.

Your teacher will provide you with a model.

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