Algebra 2 Function Review

The linear regression equation is y = 61.93x - 1.79.  According to the equation, the y-intercept can be interpreted as:

• After 0 hours of driving, they went -1.79 miles.

• They are driving -1.79 miles per hour.

• They drove 1.79 miles total.

• They drive 1.79 hours total.

A person travels by car.  They record their miles driven in a data table.  Calculate the linear regression equation of this data.

• y = 61.93x - 1.79

• y = -1.79x + 61.93

• y = 0.016x + 0.03

• y = 0.03x + 0.016

The linear regression equation is y = 61.93x - 1.79.  Use the equation to predict how far this person will travel after 10 hours of driving.

• 10 miles

• 617.5 miles

• 0.19 miles

• 500 miles

The linear regression equation for the data is  y = 1.5x + 12.  Use the equation to predict the cost of a pizza that has 8 toppings.

• $8

• $12

• $24

• $28

A helicopter hovers 40 ft above the ground. Then the helicopter climbs at a rate of 21 ft/s. Write a rule that represents the helicopter’s height h above the ground as a function of time t. 

• h = 40t + 21

• h = 21t + 40

• h = -40t + 21

• h = -21t + 40

Identify the the type of function from its graph:

• Linear Function

• Quadratic Function

• Absolute Value Function

• Cubic Function

• Square Root Function

Identify the the type of function from its graph:

• Linear Function

• Quadratic Function

• Absolute Value Function

• Cubic Function

• Square Root Function

Identify the the type of function from its graph:

• Linear Function

• Quadratic Function

• Absolute Value Function

• Cubic Function

• Square Root Function

Identify the the type of function from its graph:

• Linear Function

• Quadratic Function

• Absolute Value Function

• Cubic Function

• Square Root Function

Describe the DOMAIN and RANGE of this function. (Check all that apply.)

• Domain: All Real Numbers Negative, Positive, and Zero

• Domain: Only Negative Numbers including Zero.

• Range: All Positive Numbers including Zero.

• Range: All Negative Numbers including Zero.

• Range: All Real Numbers Negative, Positive, and Zero