Writing Exponential Functions

Front

Equation for starting with $5 and tripling money every day.

Back

y=5(3)^x

Front

Exponential function for tuition cost increasing at 6% per year from $12,000. Cost after 4 years?

Back

C(t) = 12000(1.06)^t ; $15149.72

Front

A particular type of cell triples in number every hour. Which function can be used to find the number of cells present at the end of h hours if there are initially 6 of these cells? Options:

f(h) = 3(6)^h

,

f(h) = 6x^h

,

f(h) = 6(3)^h

,

f(h) = 3(6h)

Back

f(h) = 6(3)^h

Front

Function modeling the amount of cola in gallons after h hours, starting with 75 gallons and decreasing by 5% each hour.

Back

f(h) = 75(.95)^h

Front

Which statement about the function y = 24,220 (0.85)^x is NOT true? Options: Mr. Bittle loses 85% of his investment monthly, Mr. Bittle initially invested $24,220, Each month Mr. Bittle loses 15% of his investment.

Back

Mr. Bittle loses 85% of his investment monthly

Front

Write an exponential function to model the situation. You invest $1500. Your investment increases at a rate of 3.5%.

Back

B(t) = 1500(1.035)^t

Front

Write an exponential function to model the situation. The value of a car is $18000 and is depreciating at a rate of 12% per year.

Back

V(t) = 18000(.88)^t

Front

What is the a-value (or y-intercept) for the function: f(x) = 800(0.85)^x?

Back

800

Front

Decay rate for the function: f(x) = 800(0.85)^x?

Back

15%

Front

What is the decay rate of a car valued at $15,000 that depreciates at a rate of 8% per year?

Back

8%