Question

PENGUINS An emperor penguin travels a distance of 70 miles each year

back to the place of its birth. If that same penguin moves at a speed of 2.4

miles per hour, the function d = 70-2.47 represents its distance d from its

birthplace 7 hours after it has started its journey home. Find the zero of this

function.

Answer 1

`t = (70)/(2.4)`

Explanation:

Given

`d(t) = 70 - 2.4t`

Required

Determine the zeros of the function

To do this, we simply set d(t) to 0.

So, we have:

`0 = 70 - 2.4t`

Split unlike terms

`2.4t = 70`

Solve for t

`t = (70)/(2.4)`