Question

question
if the linear equation $x = 7 - 4y$ is rewritten in function notation as $f(y)=7 - 4y$, what is the dependent variable?
select the correct answer below:
$x$
$f$
$f(x)$
$y$

Explanation:

Step1: Recall function - notation concept

In function notation $f(y)=7 - 4y$, which is equivalent to $x = 7-4y$. The value of $x$ (or $f(y)$) depends on the value of $y$.

Step2: Identify dependent variable

The dependent variable is the one whose value is determined by the other variable. Here, $x$ (or $f(y)$) is determined by $y$, so $x$ is the dependent variable.

Answer:

A. $x$