Question

Which is true? If x = y2, which of the following is true?

Answer 1

Answer:

Option A, $\sqrt{x}=y$

Step-by-step explanation:

Step 1:  Determine which expression is true

Option A

$\sqrt{x}=y$

$(\sqrt{x})^2=(y)^2$

$x = y^2$

We don't need to go any further.  We were able to determine that option A was true by squaring both sides which got rid of the square root around x and gave y another power which produced y^2.

Answer: Option A, $\sqrt{x}=y$