Question

the expression 3x + 20 represents the elevation above sea level, in meters, of a rock climber after x minutes of climbing. what is the rock climber’s initial height above sea level?

Answer 1

The rock climber’s initial height above sea level was 20 meters.

Explanation:

This is because y-intercept is 20, meaning at time 0 minutes, the rock climber was at 20 meters.