Question

Which number line represents all of the values of x for the equation x² = 64?

Answer 1

A number line that shows all the positive numbers, and in this case it is 8. The number would be to the right. Positive 8.

Answer 2

Answer:

There should be a dot at 8 and at -8

Step-by-step explanation:

x^2 = 64

Take the square root of each side

sqrt(x^2) = sqrt(64)

x = ±8

There should be a dot at 8 and at -8