Chapter 12, Problem 78CUR

To determine

To graph : The equation and determine whether the equation is a function.

Explanation of Solution

Given information : $y=3x$

Calculation :

$y=3\times 1=3$ , $y=3\times \left(-2\right)=-6$ , $y=3\times \left(2\right)=6$

x	$1$	$-2$	$2$
y	$3$	$-6$	$6$

Graph :

ABC is the graph of $y=3x$

Interpretation : ABC is the graph of $y=3x$ .

Yes, the equation is a function as the variable $y$ is dependent on the variable $x$