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Determine the value of
y, if
x is 81 .

y=sqrtx-8
Answer:
y=

Determine the value of $y$ , if $x$ is $81$ . $\newline$ $y=\sqrt{x}-8$ $\newline$ Answer: $y=$

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Solve linear equations

Full solution

Q. Determine the value of

y

, if

x

is

81

.

\newline

y=\sqrt{x}-8

\newline

Answer:

y=

Calculate square root: We are given the equation $y = \sqrt{x} - 8$ and the value of $x$ is $81$ . First, we need to find the square root of $x$ . $\newline$ Calculate the square root of $81$ . $\newline$ $\sqrt{81} = 9$
Substitute into equation: Now that we have the square root of $x$ , we can substitute it into the equation to find $y$ . Substitute $9$ for $\sqrt{x}$ in the equation $y = \sqrt{x} - 8$ . $y = 9 - 8$
Perform subtraction: Perform the subtraction to solve for $y$ . $y = 9 - 8$ $y = 1$

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