CPM Homework Help : CCA2 Problem A-8

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A-8.

For the function $f ( x ) = \frac { 6 } { 2 x - 3 }$ , find the value of each expression below.

$f(1)$
Hint (a):
Substitute $1$ for every $x$ .
Answer (a):
$f(1)=−6$

$f(0)$

$f(−3)$

$f(1.5)$
Answer (d):
$f(1.5)=$ Undefined. You can't divide by $0$ .

What value of $x$ would make $f(x)=4$ ?
Hint (e):
$4=\frac{6}{2\textit{x}-3}$
Answer (e):
$x=2.25$

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