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Determine the value of
y, if
x is 9.

y=|x|-1
Answer:

Determine the value of $y$ , if $x$ is $9$ . $\newline$ $y=|x|-1$ $\newline$ Answer:

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Transformations of absolute value functions: translations, reflections, and dilations

Full solution

Q. Determine the value of

y

, if

x

is

9

.

\newline

y=|x|-1

\newline

Answer:

Substitute $x$ into equation: Substitute the value of $x$ into the equation. $\newline$ We are given the equation $y = |x| - 1$ and we need to find the value of $y$ when $x$ is $9$ . $\newline$ Substitute $x = 9$ into the equation: $\newline$ $y = |9| - 1$
Calculate absolute value of $x$ : Calculate the absolute value of $x$ . $\newline$ The absolute value of $9$ is $9$ , since $9$ is already a positive number. $\newline$ $y = 9 - 1$
Subtract $1$ from absolute value: Subtract $1$ from the absolute value of $x$ . Now we subtract $1$ from $9$ to find the value of $y$ . $y = 9 - 1$ $y = 8$

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