Question

The function f(x)= 3(1.4)' gives the length (in inches) of an image after being enlarged by 10% x times.

What is the length of the image after it has been enlarged 3 times? Round your answer to the nearest
hundredth

Answer 1

3.99 inches

Explanation:

The correct question is

The function f(x) = 3(1.1)^x gives the length (in inches) of an image after being enlarged by 10% x times.

What is the length of the image after it has been enlarged 3 times? Round your answer to the nearest hundredth

we have

`f(x)=3(1.1)^x`

This is a exponential growth function

where

f(x) represent the length (in inches) of an image

x is the number of times the image is enlarged

so

For x=3

substitute in the exponential equation

`f(x)=3(1.1)^3=3.99\ in`