Linear Relationship Models

The cost of hiring a private tutor is modeled by the function C(n)=32n+20. What does 20 represent in this model?

• Price per hour

• Flat fee to hire tutor

• Maximum number of hour you can hire the tutor

• I don't know what it means

The cost of hiring a private tutor is modeled by the function C(n)=32n+20. How many hour did the tutor work to earn $212?

• 4 hours

• 6 hours

• 5 hours

• 7 hours

Which of the following equations represents the line that has a y-intercept of (0, -2) and x-intercept of (3 , 0)?

Which is the equation of the graph?

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Which equation models the relationship between shipping fee and number of items?

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

• There is a $5 initial charge and an additional charge of $2 per copy.

• There is a $2 initial charge and an additional charge of $5 per copy.

• The company charges $5 for every 2 copies.

• The company charges $2 for every 5 copies.

• Joe spent $9

• If Joe bought only Spaghetti O's, he could buy 9 cans.

• If Joe bought only Ramen noodles, he could buy 9 packages.

• Joe brought in 9 items

Choose the linear inequality and explanation for its shading according to the graph.