Exponential functions and systems of equations

Is the pictured graph growth, decay, or linear or none?  

• Exponential Growth
• Exponential Decay
• Linear
• None

Tags

CCSS.HSF-IF.C.7E

The following function represents a bank account. 
g(x) = 200(1.25)^x
What was the initial dollar amount put in the bank?

• $200
• $1.25
• $0.25
• $2.00

Tags

CCSS.HSF.LE.B.5

The following function represents a bank account. 
g(x) = 200(1.25)^x
What is the rate the bank is paying?
*Remember the rate is added or subtracted to 1 inside parenthesis*

• 200%
• 1.25%
• 25%
• 2%

Tags

CCSS.HSF-IF.C.8B

Is this exponential growth or decay?

• Growth
• Decay

Tags

CCSS.HSF-IF.C.8B

Is this exponential growth or decay?

• Growth
• Decay

Tags

CCSS.HSF-IF.C.8B

What is the y-intercept of the function?

• 2
• 3
• 1
• -2

Tags

CCSS.HSF-IF.C.7E

Given y=3^x determine the y-intercept 

• (0,1)
• (0,3)

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

Write an equation that models the following situation:
Samantha's hair was known to grow very rapidly. It began at a length of 6 in and grew at a rate of 14% a week.

• y=6(0.14)^x
• y=6(1+14)^x
• y=6(1.14)^x
• y=6(0.86)^x

Tags

CCSS.HSF.LE.A.2

A class used cars and vans to go on a field trip. They used 6 vehicles in all for the trip. Each car holds 5 students and each van holds 7 students. A total of 36 students went on the trip. If x represents cars and y represents vans, which system of equations can be used to represent this situation.

• 6x+5y=7   x+y=36
• 5x+6y=36   x+y=7
• 5x+7y=36   x+y=6
• 5x+7y=6    x+y=36

Tags

CCSS.8.EE.C.8C

At a restaurant the cost for a breakfast taco and a small glass of milk is $2.10. The cost for 2 tacos and 3 small glasses of milk is $5.15. If a system of equations is written, which would be the correct representation of the 2 variables? 

• t: # of tacos
  m: # of glasses of milk
• t: Cost of each taco
  m: Cost of each glass of milk
• t: total cost
  m: # of food items
• t: Cost of each glass of milk
  m: Cost of each tac

Tags

CCSS.8.EE.C.8C