Exponential or Not

What is the x-intercept of the exponential function? 

• (0,1)

• (0,0)

• There is not one

Tags

CCSS.HSF-IF.C.7E

The value of a car is $15,000 and depreciates at a rate of 8% per year. What is the exponential equation?

• y=8(15,000)^x

• y=15,000(1 + .08)^x

  or y=15,000(1.08)^x

• y=15,000(0.92)^x

  or y=15,000(1 - .08)^x

• y=15,000(0.08)^x

Tags

CCSS.HSF.LE.A.2

A new savings account is opened with $400 and gains 3% every year. What is the exponential function?

• f(x)=400(3)^x

• f(x)=400(0.97)^x

• f(x)=400(1.03)^x

• f(x)=400(0.03)^x

Tags

CCSS.HSF.LE.A.2

James' 70 in. giant peach doubles in size every week. Write an expression that would represent how big the peach is after 5 weeks.

• 70(2)³⁵

• 70(2)⁵

• 2(70)⁵

• 5(70)²

Tags

CCSS.HSF.BF.A.2

Which of the following functions shows an initial amount of $15 and an increase of 35% each year?

• y = 15(35)^x

• y = 15(1.35)^x

• y = 15(0.35)^x

• y = 35(1.15)^x

Tags

CCSS.HSF.LE.A.2

What is the y-intercept of the function?

• 2

• 3

• 1

• -2

Tags

CCSS.HSF-IF.C.7E

In the first year of an annual 5K run there were 120 participants. In the 2nd and 3rd year of the 5K run, there were 180 and 270 participants respectively. This situation is best modeled by a(n) ________________ function.

• Linear

• Quadratic

• Exponential

• None of the above

Given the chart, which function is represented?

X Y

-3 0.015625

-2 0.0625

-1 0.25

0 1

1 4

2 16

3 64

• Linear

• Quadratic

• Exponential

• None of the above

True or False: All increasing exponential functions eventually exceed all increasing linear functions.

• True

• False

Tags

CCSS.8.F.A.2

CCSS.HSF.IF.C.9

Which function increases faster: f(x) = 4x or g(x) = 3^x ?

• f(x)

• g(x)

• Neither - they increase at the same rate

Tags

CCSS.8.F.A.2

CCSS.HSF.IF.C.9