The function ๐(๐ฅ) = (2/5)๐ฅ is shown on the coordinate plane. Describe the end behavior of f(x).

As x decreases without bound, the graph of f(x) ______________________________.

As x increases without bound, the graph of f(x) ______________________________.

The exponential function in the graph shows the mass, in grams, of a radioactive substance as it decays over time, in hours. The linear function in the table represents the increase in a substanceโs mass, in grams, over time, in hours.

How does the y-intercept of the exponential function compare to the y-intercept of the linear function?

a. 10 less than

b. 10 more than

c. 2 more than

d. 2 less than

Guest Dec 1, 2017

#1**+1 **

As x decreases without bound......the graph of f(x) increases without bound

As x increases without bound.......the graph of f(x) decreases but is bounded below by 0

________________________________________________

The y intercept for the exponential function is (0,10)

For the linear function......y decreases by 4 every time that x decreases by 1

So when x decreases by 2, y decreases by 8

So.......from (2, 20) the y intercept is ( 0, 12)

So .... the linear function is 2 more

CPhill
Dec 1, 2017