Question

determine the value of y, if x is 31.
y = \sqrt{x - 27}

Explanation:

Step1: Substitute x with 31

Substitute \( x = 31 \) into the equation \( y=\sqrt{x - 27} \), we get \( y=\sqrt{31 - 27} \).

Step2: Simplify the expression inside the square root

Calculate \( 31-27 = 4 \), so the equation becomes \( y=\sqrt{4} \).

Step3: Calculate the square root

Since \( \sqrt{4}=2 \), we get \( y = 2 \).

Answer:

\( 2 \)