Unit Test — Unit test Answers

A collector’s item is purchased for $150 and its value increases by 3% each year. Which graph can be used to determine approximately how many years it will take for the value to double?

The curve through the ordered pairs (0, 10), (1, 5), and (2, 2.5) can be represented by the function f(x) = 10(0.5)x. What is the multiplicative rate of change of the function?

Which is the graph of ?

A piecewise function is represented by the graph below.

Which table represents a linear function?

The function f(x) is to be graphed on a coordinate plane.f(x) = At what point should an open circle be drawn?

Which table represents exponential growth?

Felix’s Feed Mill sells chicken feed for $8.00 per bag. This price is no longer high enough to create a profit. Felix decides to raise the price. He is considering four different plans.Plan A: Raise the price by $0.10 each week until the price reaches $12.00.Plan B: Raise the price by 10 percent each week until the price reaches $12.00.Plan C: Raise the price by the same amount each week for 8 weeks, so that in the eighth week the price is $12.00.Plan D: Raise the price by $0.25 each week until the price reaches $12.00.Which plan will result in the price of the feed reaching $12.00 fastest?

Which equation represents an exponential function with an initial value of 500?

Which graph represents the function f(x) = |x| – 4?

Which graph represents the function p(x) = |x – 1|?

Which table shows exponential decay?

On a coordinate plane, an absolute value graph has a vertex at (1, 3).

Which is the graph of f(x) = (4)x?

The function f(x) = 2·5x can be used to represent the curve through the points (1, 10), (2, 50), and (3, 250). What is the multiplicative rate of change of the function?

The table represents an exponential function.