Intro to Exponential Functions

Which function has the greatest y-intercept?

• $y=3\cdot4^x$

• $y=4\cdot3^x$

• $y=1\cdot5^x$

• $y=5\cdot2^x$

Tags

CCSS.HSA.SSE.A.1

CCSS.HSF.IF.B.4

CCSS.HSF.IF.C.7

CCSS.HSF.LE.A.1

Which function has the greatest common ratio?

• $y=3\cdot4^x$

• $y=4\cdot3^x$

• $y=1\cdot5^x$

• $y=5\cdot2^x$

Tags

CCSS.HSF.IF.C.9

CCSS.HSF.LE.A.1

CCSS.HSF.LE.B.5

Identify the y-intercept (initial value) in the function y=13(.27)^x

• 0

• .27

• 13

• 3.51

Tags

CCSS.HSF.IF.B.4

CCSS.HSF.IF.C.7

CCSS.HSF.LE.B.5

Identify the common ratio (multiplier) of the function f(x)=2(4)^x.

• 2

• 4

• 1

• 8

Tags

CCSS.HSF.LE.A.1

CCSS.HSF.LE.B.5

Which is the basic form of an exponential function?

• $y=mx+b$

• $y=a\cdot b^x$

• $y=a\left|x\right|$

Tags

CCSS.HSF.LE.A.1

The half-life of ibuprofen is 1-hour. You take 400 mg of ibuprofen. Write an exponential equation that could be used to find the amount of ibuprofen you have remaining in your body after x hours.

• $y=400\left(\frac{1}{2}\right)^x$

• $y=400\left(2\right)^x$

• $y=400-2^x$

• $y=400-\left(\frac{1}{2}\right)^x$

Tags

CCSS.HSA.CED.A.1

CCSS.HSF.BF.A.1

CCSS.HSF.LE.A.1

CCSS.HSF.LE.A.2

Choose the correct equation for an exponential function that starts at 5 and has a growth factor of 2

• $y=2\left(5\right)^x$

• $y=5\left(2\right)^x$

• $y=a\left(2\right)^5$

• $y=2a^5$

Tags

CCSS.HSF.BF.A.1

CCSS.HSF.LE.A.2

CCSS.HSF.LE.B.5

Choose the correct equation for an exponential function that has a growth factor of 3 and starts at 1

•  $y=a\left(1\right)^3$ 

•  $y=3\left(a\right)^1$ 

•  $y=3\left(1\right)^x$ 

•  $y=\left(3\right)^x$ 

Tags

CCSS.HSF.BF.A.1

CCSS.HSF.LE.A.1

CCSS.HSF.LE.A.2

CCSS.HSF.LE.B.5

Choose the correct equation for the table

• $y=\left(10\right)^x$

• $y=10\left(1\right)^x$

• $y=\left(1\right)^x$

• $y=10\left(10\right)^x$

Tags

CCSS.HSF.BF.A.1

CCSS.HSF.IF.B.4

CCSS.HSF.LE.A.1

CCSS.HSF.LE.A.2

Choose the correct equation for the table

• $y=4\left(5\right)^x$

• $y=5\left(20\right)^x$

• $y=5\left(4\right)^x$

• $y=5\left(15\right)^x$

Tags

CCSS.HSF.IF.B.4

CCSS.HSF.LE.A.1

CCSS.HSF.LE.A.2