QUIZ: 6.6 (Inverses), 7.1 (Exp Growth/Decay), 7.2 (Base e)

Classify the model as Exponential GROWTH or DECAY.
A=1200(.85)⁶

• Growth
• Decay

Tags

CCSS.HSF-IF.C.8B

• The graph represents an exponential growth situation.

• Eventually, the car will be worth exactly $0.

• The starting value of the car was $12,000.

• The range for the situation is y ≥ 0.

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 + 0.35)^x

• y = 15(0.35)^x

• y = 35(1+ 0.15)^x

Tags

CCSS.HSF.LE.A.2

Pick the equation that is exponential decay

What is the balance of $6000 compounded annually at a rate of 4% for 10 years?

• $8,881.47

• $7,432.93

• $8,400

• $6,500

Some banks charge a fee for a savings account that is left inactive for an extended period of time. 

The equation  $y=5000(0.98)^x$   represents the amount remaining, y, of one account that was left inactive for a period of x years. 

What does the number 5000 represent in this situation?

• A fee charged for an inactive account

• The percent of money in the account after x years

• The amount of money in the account initially

• The amount of money in the account after x years

Tags

CCSS.HSF.LE.B.5

Find the inverse of 

 $f(x)=2x-2$  

• $f^{-1}(x)=\frac{1}{2}x+1$
  

• $f^{-1}(x)=-2-\frac{1}{2}x$
  

• $f^{-1}(x)=-\frac{7}{3}x-\frac{20}{3}$
  

• $f^{-1}\left(x\right)=2-\frac{2}{5}x$
  

Tags

CCSS.HSF-BF.B.4A

If the equation of f(x) goes through (1, 4) and (4, 6), what points does f^-1(x) go through?

• (1, 4) and (4, 6)
• (-4, -1) and (-6, -4)
• (-1, -4) and (-4, -6)
• (4, 1) and (6, 4)

Tags

CCSS.HSF-BF.B.4C

The inverse has been reflected over which line?

• y = x
• y =1
• y = 0
• y = x + 1

Tags

CCSS.HSF-BF.B.4B

 $f(x)=\frac{5}{11}x+10$  

Find the inverse of

•  $f^{-1}(x)=\frac{11}{5}(x-10)$  
  

•  $f^{-1}(x)=\frac{5}{11}x-22$  
  

•  $f^{-1}(x)=\frac{11}{5}x-10$  
  

• None of the above

Tags

CCSS.HSF-BF.B.4A