Lemma
EasyRational expressions
OpenStax, Elementary Algebra 2e §8.9 Use Direct and Inverse Variation · Try It 7 · Algebra · Rational expressions

Use Direct and Inverse Variation · Try It 7

The distance an object falls is directly proportional to the square of the time it falls. A ball falls 144 feet in 3 seconds.

ⓐ Write the equation that relates the distance to the time.
ⓑ How far will an object fall in 4 seconds?

~5 minWritten answer · compare with the solution

OpenStax, Elementary Algebra 2e · §8.9 Use Direct and Inverse Variation · Try It 7

Stuck? A gentle nudge

No hints for this one.

Something off?
Workspace
Your working

Check your full solution

Upload photos of your handwritten work or a PDF, and Lemma will read it and tell you whether it's right — and where it first goes wrong if not.