6/26 Exponential Functions Review

What is the range of the function shown?

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

What is the domain of the function shown?

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

Tags

CCSS.HSF.LE.B.5

Tags

CCSS.HSF-IF.C.8B

A small private school with a graduating class of 40 students in the year 2019 predicts that its graduating class will increase by 5% each year.

What function best represents this situation?

Tags

CCSS.HSF.LE.A.2

Pick the equation that is exponential decay

• y=2000(0.88)
• y=0.5(1.88)

Tags

CCSS.HSF.LE.A.1

Is this exponential growth or decay?

• Growth
• Decay

Tags

CCSS.HSF.LE.A.1

CCSS.HSF.LE.B.5

Write an exponential function to model the situation. Solve.
2) The cost of tuition at a college is $12,000 and is increasing at a rate of 6% per year. What will the cost be after 4 years?

• C(t) = 12000(1.06)^t ; $3149.72
• C(t) = 12000(.06)^t ; $3149.72
• C(t) = 12000(.06)^t ; $1472.95
• C(t) = 12000(1.06)^t ; $15149.72

Tags

CCSS.HSF.LE.A.2

The amount of cola in a soda machine decreases by a rate of 5% each hour. The amount of cola in the machine was originally 75 gallons.

Which function models the amount of cola in gallons after h hours?

• f(h) = 75(-5)^h

• f(h) = -5(75)^h

• f(h) = .95(75)^h

• f(h) = 75(.95)^h

Tags

CCSS.HSF.LE.A.2

In an exponential function, what does the 'b' represent?

• The input

• The output

• The y-intercept (Initial Value)

• The common ratio (Multiplier)

Tags

CCSS.HSF-IF.C.8B