Question

Choose the correct simplification of the expression 4 over y to the power of negative 3.

4y3

4 over y to the 3rd power

y to the 3rd power over 4

This expression is already simplified.

Answer 1

\[\frac{4}{y^{-3}}\]

Answer 2

The negative exponent means "inverse". Also there's a rule of exponents:

\[\frac{1}{x^{-a}} = x^a\]

Answer 3

In other words, the inverse of one over x to the power a equals x to the power a.

Answer 4

so what is the answer