Connecting Linear Models

• There are between 20 and 28 people in the room.

• There are 60 people in the room during that interval.

• No people enter or leave the room during that interval.

• This interval represents the time during which there are the most people in the room.

This table shows the relationship between humerus

(arm bone) length and a woman’s height.

Predict the height of a woman whose humerus length

is 40 cm.

• 176 cm

• 178.75 cm

• 173.25 cm

• 181.5 cm

Describe the value of the correlation coefficient.

• It is close to one.

• It is close to negative one.

• It is close to zero.

• There is no correlation between the quantities.

Victoria sells candy bars for a school fundraiser. The graph models the linear relationship between the number of hours she sells candy bars and the number of candy bars sold. Which statement best describes the rate for Victoria’s candy bar sales?

• 15 candy bars per hour

• 20 candy bars per hour

• 2 candy bars per 30 hours

• 3 candy bars per 4 hours

• 15

• 60

Logan wants to connect the points on the graph below, but she can use only horizontal and vertical lines. Which statement is true about connecting Point A to Point B?

•       The path connecting the points has a rise of 3 and a run of –6.

•       The path connecting the points has a rise of –6 and a run of 3.

•       The path connecting the points has a rise of 3 and a run of 6.

•       The path connecting the points has a rise of –6 and a run of –3. 

  A linear function is represented on the coordinate grid. 

Choose the correct answer from each drop-down menu to complete the statements.

The slope of AB is                           

A linear function is represented on the coordinate grid.

Choose the correct answer from each drop-down menu to complete the statements.

The y-intercept of AB is

Bill opens a savings account and saves $12 every week. Which graph has a slope that best represents this rate?

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