Exponential Functions Review #2

Which of the following is a true statement about the graph of y = 13(0.27)^x ?

• The graph has an asymptote of x = 0.

• The coordinates of the x-intercept are (0.27, 0).

• The coordinates of the y-intercept are (0, 13).

• The graph includes the point (1, 13.27).

Tags

CCSS.HSF-IF.C.7E

The value of a car is $15,000 and depreciates at a rate of 8% per year. Which function can be used to represent the value of the car remaining after x years?

• y=8(15,000)^x

• y=15,000(1.08)^x

• y=15,000(0.92)^x

• y=15,000(0.08)^x

Tags

CCSS.HSF.LE.A.2

Name the range.

• x> -4

• y > -5

• y < -4

• x < -5

Tags

CCSS.HSF-IF.C.7E

A portion of an exponential function is shown on the graph. Which best represents the domain of the portion shown?

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

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Tags

CCSS.HSF-IF.C.7E

The equation for this table is

• y = 3x + 50

• y = 50^x

• y = 3^x

• y = 50(3)^x

Tags

CCSS.6.EE.C.9

Which spot represents the Asymptote

• A

• B

• C

• D

Tags

CCSS.HSF-IF.C.7E

An adult takes 400 mg of ibuprofen. Each hour, the amount of ibuprofen in the person’s system decreases by about 29%.

Which function could be used to represent the amount of ibuprofen remaining in a person's system?

• y = 400(0.29)^x

• y = 400(0.71)^x

• y = 0.71(400)^x

• y = 0.29(400)^x

Tags

CCSS.HSF.LE.A.2

Which statement about the function is NOT true?

• The range is all real numbers less than 1.

• The asymptote is y = 1.

• The domain is all real numbers greater than 1.

• The y-intercept is (0, 0).

Tags

CCSS.HSF-IF.C.7E

The function q(x) = 30(0.88)^x represents the amount of fluid remaining in an air freshener. Which of the following statements correctly interprets the function?

• The liquid in the air freshener has increased by 88%.

• The liquid in the air freshener has decreased by 88%.

• The liquid in the air freshener has increased by 12%.

• The liquid in the air freshener has decreased by 12%.

Tags

CCSS.HSF.LE.B.5