- #1

044

- 1

- 0

## Homework Statement

Hiker 1 was at the bottom of a cliff. He started climbing trying to maintain a constant rate of speed. After 2 minutes he was 160 ft from the bottom of the cliff and after 5 minutes he was 380 ft from the bottom. What is the height of the cliff and when did he reach the top?

## Homework Equations

Found slope with m = 380 - 160/5 - 2

y = 73.3x + b or y = 220/3 (x) + b

## The Attempt at a Solution

I found y-intercept to be 13.3 ft which as the height of the cliff doesn't make sense to me. I can think of no way to determine how long to the top going up. I can see how you could calculate the height and time going down, but not up.