Answers Algebra I AIntroduction to Linear Functions

Introduction to Linear Functions Answers

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Which functions have an additive rate of change of 3? Select two options.

Option

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Elena agrees to finish a knitting project for a friend. The graph shows the number of rows Elena completes compared to the amount of time spent knitting.

The final cost of a sale item is determined by multiplying the price on the tag by 75%. Which best describes the function that represents the situation?

It is linear because the ratio of the change in the final cost compared to the rate of change in the price tag is constant.

It is linear because the function is continuous.

It is nonlinear because the final cost is determined by multiplying each price tag by 0.75.

It is nonlinear because the price tag and final cost columns do not have the same common difference.

A data set contains an independent and a dependent variable. Which must be true of the data set if a linear function can be used to represent the data?

The set must have a constant additive rate of change.

The set must have a constant multiplicative rate of change.

The values in the set must be positive.

The values in the set must be increasing.

Which table represents a linear function?

Option

The graphs below shows some properties of regular polygons.

Roger and Rita each drive at a constant speed between Phoenix and San Diego. Each driver’s distance (miles) is shown for the same elapsed time (hours) of the trip. Who had a head start, and how many miles was the head start?