Question

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

Answer 1

Given
$\frac{4}{ {y}^{ - 3} }$
Recall and apply this law of exponents,

$\frac{1}{ {a}^{ - n} } = {a}^{n}$
$4 \times \frac{1}{ {y}^{ - 3} } = 4 \times {y}^{3}$
$4 \times \frac{1}{ {y}^{ - 3} } = 4 {y}^{3}$

The correct answer is A