Exponential and Logistic Functions Quizizz

Does the graph represent an exponential growth or an exponential decay function?

• Exponential Growth
• Exponential Decay

Tags

CCSS.HSF-IF.C.7E

What does the y-intercept of the graph represent?

• The amount of grams the material is gaining.
• The amount of grams the material is losing.
• The amount of grams remaining after so many years.
• The initial amount of grams.

Tags

CCSS.HSF.LE.B.5

Which of the following is an increasing exponential function whose y-intercept is 50?

• y = 50(.05)^x
• y = 50x - 4
• y = (2)^x + 50
• y = 50(1.4)^x

Tags

CCSS.HSF.LE.A.2

The expression 12(1.015)^t models the population of elephants in a wildlife refuge after t years since 1975.
What does the value 12 represent?

• The predicted increase in number of elephants in the refuge each year.
• The predicted decrease in number of elephants in the refuge each year.
• The number of years it will take for the elephant population to stop increasing.
• The initial amount of elephants in the park.

Tags

CCSS.HSF.LE.B.5

Is the following function exponential growth, exponential decay, linear, or none of the above.
g(x) = 740(.001)^3x

• Exponential growth
• Exponential decay
• Linear
• None of the above

 $f\left(x\right)=\frac{45}{1+15e^{-1.3x}}$  Using the given function, what is the horizontal asymptote(s)

• y=0

• y=45

• y=15

• y=0 and y=45

Tags

CCSS.HSF-IF.C.7D

 $f\left(x\right)=\frac{45}{1+14e^{-1.3x}}$  Using the given function, what is the y-intercept?

• (0,3)

• (0,1)

• (0,15)

• (0,45)

Tags

CCSS.HSF-IF.C.7E

Which of the following functions is logistic?

• $f\left(x\right)=-2\log_ex$

• $f\left(x\right)=\ln\left(x+2\right)$

• $f\left(x\right)=\frac{1}{1+e^{-.1x}}$

• $f\left(x\right)=4e^{\left(x-1\right)}$

What is the value of a in the logistic function  $y=\frac{6}{1+3e^{-2x}}$  ?

•  $a=1$  

•  $a=2$  

•  $a=3$  

•  $a=6$  

Tags

CCSS.HSF.LE.A.2

The maximum number of students allowed at PRHS f(x) since 2005 in years x is given by the function  $f\left(x\right)=\frac{1800}{1+0.8e^{-0.693x}}$ .  What was the maximum number of students allowed at PRHS in 2010?

• 1756

• 1799

• 1800

• 1778