Review: Functions (3-5)

Which equation represents a linear function?

• y = x(3x+2)

• y = 2x+10

Tags

CCSS.8.F.A.3

Which table does not represent a linear function?

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• 
• 
• 

Tags

CCSS.8.F.A.3

In which table is y a nonlinear function of x?

• 
• 
• 
• 

Tags

CCSS.8.F.A.3

The graph represents a linear function.

Which function represents this graph?

• y = –3x + 2

• y = –2x + 3

• y = 2x – 3

• y = 3x – 2

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

Which is an equation of the line that passes through the points (–6, 3) and (2, 7)?

Michelle is planning an anniversary party at a restaurant. There is a fee to use the banquet room, plus the cost of dinner for each guest. The table below lists the total cost based on the number of guests.

• The fee to use the room is $16.

• The fee to use the room is $25.

• The cost of dinner is $16 per person.

• The cost of dinner is $25 per person.

Tags

CCSS.8.EE.B.5

• For every 5 strawberries the farmer

     picks, the temperature decreases by

               4 degrees.

• The farmer lost on average 5 strawberries

     for every 4 degree increase in    

     temperature.

• When the weight of the strawberries

    increased by 4 grams, the temperature

    decreases by 5 degrees.

• When the temperature increased by 4

    degrees, the strawberries lost an average

    of 5 grams of weight.

Tags

CCSS.HSF.LE.B.5

The shows a graph of a function.

Where is the function decreasing?

• The function decreases when x is less than –7.

• The function decreases when x is greater than –6.

• The function decreases when x is between 0 and 4.

• The function decreases when x is between –6 and 0.

Macy drove her car to visit her uncle. She came part of the way home after her visit. This graph shows the distance Macy was from her home during the course of the day.

During which part of the graph was Macy visiting her uncle?

• I

• II

• III

• IV

Tags

CCSS.HSF.IF.B.4

Jill went for a run. She recorded her elapsed time and her distance from home in the graph on the image.

 Which description best matches the graph?

• Jill ran for 3 miles at a constant rate, and then she turned around and ran home at the same rate.

• Jill ran uphill for 30 minutes, and then she ran downhill for 30 minutes.

• Jill’s rate increased for 30 minutes, and then her rate decreased for 30 minutes.

• Jill ran for 3 miles at a faster rate, and then ran for 3 miles at a slower rate.

Tags

CCSS.HSF.IF.B.4