Exponential Functions vs Linear Graphs

Is the equation linear or exponential?

• Linear

• Exponential

The population of Cary, NC in the year 2000 was 97,400 people. The population steadily grew by 2.5% each year. What type of function is this?

• Linear 

• Exponential 

• Neither

Is the equation linear or exponential?

• Linear

• Exponential

Is the table linear or exponential?

• Linear

• Exponential

Is the table linear or exponential?

• Linear

• Exponential

Is the table linear or exponential?

• Linear

• Exponential

The iPhone X is valued at $1000 upon purchase. The value is expected to decrease by 14% each year. What type of function is this?

• Linear 

• Exponential 

• Neither 

The iPhone X is valued at $1000 upon purchase. The value is expected to decrease by 14% each year. Which function matches the situation? Let Cost (C) be a function of time (t)

• C(t)=1000-0.14t

• C(t)=1000(.14)^t

• C(t)=1000(.86)^t

• C(t)=1000-0.86t

Find the equation given the table.

• y=3x+3

• y=3(2)^x

• y=2(3)x

• y=2x+3

The population of Cary, NC in the year 2000 was 97,400 people. The population steadily grew by 2.5% each year. Which function relates to the situation? Let Population (P) be a function of time (t)

• P(t)=97400+2.5t

• P(t)=97400(2.5)^t

• P(t)=97400(1.25)^t

• P(t)=97400(1.025)^t