A bird's weight $\displaystyle {W}$ is frequently related to the length $\displaystyle {L}$ of its wing span. For one species of bird, the formula $\displaystyle {W}={1.1}{L}^{{3}}$ could be used to predict a bird's weight $\displaystyle {W}$ in kilograms for a wing span of $\displaystyle {L}$ meters.

a) If a bird has a wing span of 0.75 meters, estimate its weight. Round your answer to the nearest hundredth.

kg

b) If the wing span of a bird increases by a factor of 6, what happens to its weight?

The weight increases by a factor of