Rachel is a stunt driver, and she's escaping from a building that is about to explode! The variable d models Rachel's distance

Question

Rachel is a stunt driver, and she's escaping from a building that is about to explode!
The variable d models Rachel's distance from her exit (in meters) t seconds after the cameras began recording the stunt.

d=-38t+ 220
What is Rachel's speed?

Kunduz · Accepted Answer

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