Evaluating Exponential Functions

Evaluate  $f\left(x\right)\ =\ e^{3x}$  

 $f\left(2\right)$  

•  $e^6$  

•  $e^{-6}$  

•  $e^9$  

• None of the Above

Tags

CCSS.HSF-IF.C.8B

 $f\left(x\right)=4^{-x}$  Evaluate  $f\left(3\right)$  .

•  $64$  

•  $\frac{1}{64}$  

•  $-64$  

•  $-\frac{1}{64}$  

Tags

CCSS.HSF-IF.C.8B

Which of the following is not an exponential function?

• $g\left(x\right)\ =\ x^{3\ }+2x-1$

• $f\left(x\right)\ =\ e^{4x\ }$

• $h\left(x\right)\ =3^{x\ }$

• All of the Above are Exponential Functions

 $f\left(x\right)\ =8^{x\ }+4$  Evaluate  $f\left(\frac{1}{3}\right)$  

• 8

• 4

• 2

• 6

Tags

CCSS.HSF-IF.C.8B

 $f\left(x\right)=6^{\ \frac{3}{5}}$  

Rewrite

•  $\sqrt{216}$  

•  $\sqrt{6^{5\ }}$  

•  $\sqrt{36}$  

• None of the Above

 $f\left(x\right)=4^{x\ }+3x-x^{3\ }+100$  Evaluate  $f\left(-1\right)$  

• 98.25

• 96.25

• 94

• 92

Tags

CCSS.HSF.IF.A.2

What would x must equal in order for $f\left(x\right)=\frac{1}{5}$  ?  Let  $f\left(x\right)\ =\ 25^{x\ }$  

•  $\frac{1}{2}$  

•  $-\frac{1}{2}$  

•  $2$  

•  $-2$  

Tags

CCSS.HSF.BF.B.5

If you were to graph  $f\left(x\right)\ =\ 4^{x\ }+1$  , what would be the y-intercept?

•  $\left(0,0\right)$  

• (0,1)

• (0,2)

• None of the Above

Tags

CCSS.HSF-IF.C.7E

Consider the function $f\left(x\right)\ =3^{-x\ }$  .  What happens to  $f\left(x\right)\$  as x goes to infinity.

• Approaches 0

• Approaches negative infinity

• Approaches positive infinity

• Approaches 3

Tags

CCSS.HSF-IF.C.7E