QUESTION IMAGE
Question
the function $f(x)$ is shown in the table.
| $x$ | $-4$ | $-2$ | $0$ | $2$ | $4$ |
| $f(x)$ | $-18$ | $-12$ | $-6$ | $0$ | $6$ |
the function $g(x)$ is represented by the equation $g(x) = 2(x - 2)^2$.
use the drop - down menus to compare the $y$-intercepts of $f(x)$ and $g(x)$.
click the arrows to choose an answer from each menu.
the $y$-intercept of $f(x)$ is choose... and the $y$-intercept of $g(x)$ is choose....
the $y$-intercept of $f(x)$ is choose... the $y$-intercept of $g(x)$.
Step1: Find y-intercept of $f(x)$
From the table, when $x=0$, $f(0)=-6$.
Step2: Find y-intercept of $g(x)$
Substitute $x=0$ into $g(x)$:
$$g(0)=2(0-2)^2=2\times(-2)^2=2\times4=8$$
Step3: Compare the two values
$-6 < 8$, so the y-intercept of $f(x)$ is less than that of $g(x)$.
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The y-intercept of $f(x)$ is $\boldsymbol{-6}$ and the y-intercept of $g(x)$ is $\boldsymbol{8}$.
The y-intercept of $f(x)$ is $\boldsymbol{less\ than}$ the y-intercept of $g(x)$.