Reasoning with Exponents & Radicals | 8.EE.A.2 💗💙

What is the value of z in the equation x^y = z when x=3 and y=4?

• 12

• 27

• 81

• 243

If x^y = z, what is the value of x when y=3 and z=125?

• 3

• 5

• 25

• 15

Consider the equation the y-th root of z = x. If y=2 and z=2, is the value of x a rational number?

• Yes, because 2 is a whole number.

• No, because the square root of 2 is irrational.

• Yes, because it can be written as a fraction.

• No, because 2 is a prime number.

For the equation the y-th root of z = x, which pair of integer values for y and z makes the equation true when x=8?

• y=2, z=16

• y=3, z=24

• y=2, z=64

• y=3, z=8