### Home > CCA > Chapter Ch5 > Lesson 5.2.1 > Problem5-50

5-50.

For the function $f ( x ) = \sqrt { 3 x - 2 }$ find the value of each expression below. Homework Help ✎

1. f(1)

Substitute 1 for x.

$\textit{f}(1)=\sqrt{3-2}$

f(1) = 1

2. f(9)

3. f(4)

4. f(0)

The square root of a negative number is undefined.

5. What value of x makes f(x) = 6?

Substitute 6 for f(x).

$6=\sqrt{3\textit{x}-2}$

Square both sides.

36 = 3x − 2

Solve for x.

$\textit{x}=12\frac{2}{3}$