Practice 7.5-7.6 Test

Decide whether the word problem represents a linear or exponential function.

A library has 8000 books, and is adding 500 more books each year.

• Linear,

  y = 8000x + 500

• Linear,

  y = 500x + 8000

Decide whether the word problem represents a linear or exponential function.

A bank account starts with $10. Every month, the amount of money in the account tripled.

• Linear,

  y = 3x + 10

• Linear,

  y = 10x + 3

Decide whether the table represents a linear or exponential function.

• Linear,

  y = 3x-1

• Linear,

  y =-x+3

Decide whether the table represents a linear or exponential function.

• Linear,

  y = 3x-6

• Linear,

  y =-x-6

Is the picture graph growth, decay, Linear or none?

• exponential growth

• exponential decay

• Linear growth

• Linear Decay

• None

Is the picture graph growth, decay, Linear or none?

• exponential growth

• exponential decay

• Linear growth

• Linear Decay

• None

Is the picture graph growth, decay, Linear or none?

• exponential growth

• exponential decay

• Linear growth

• Linear Decay

• None

Is the picture graph growth, decay, Linear or none?

• exponential growth

• exponential decay

• Linear growth

• Linear Decay

• None

What is the horizontal asymptote of the exponential function.

• y = 1

• y = -1

• none

• y = 0

• y = 123

• y = -143

• none

• y = 234