Evaluate y^-4*y^3

$y^{- 4} \cdot y^{3}$

Multiply $y^{- 4}$ by $y^{3}$ by adding the exponents.

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$y^{- 4 + 3}$

Add $- 4$ and $3$ .

$y^{- 1}$

Rewrite the expression using the negative exponent rule $b^{- n} = \frac{1}{b^{n}}$ .

$\frac{1}{y}$