Algebra 1: Unit 4 Linear Functions

The graph shows the speed of a vehicle plotted against time.  Which section has the greatest rate of acceleration?

• A to B
• B to C
• C to D
• D to E

Tags

CCSS.HSF.IF.B.4

Write function rules to represent the following system of equations:
The cost of renting a car from Shady Grady's Rent-a-car is $18 per day plus $0.30 per mile driven.  The cost of renting the same car at EZ-Rider Rental is $20 per day plus $0.25 per mile driven.

• y₁= 0.30 + 18x                  y₂= 0.25 +20x
• y₁=18.30x                          y₂= 20.25x
• y₁=18 - 0.30x                     y₂= 20 - 0.25x
• y₁ =18 + 0.30x               y₂=20 + 0.25x

Tags

CCSS.8.EE.C.8C

The cost of renting a car from Shady Grady's Rent-a-car is $18 per day plus $0.30 per mile driven.  The cost of renting the same car at EZ-Rider Rental is $20 per day plus $0.25 per mile driven.  Which company would be best if you plan to drive 25 miles.

• Shady Grady's Rent-a-Car
• EZ Rider Rental
• It doesn't matter, they are the same

Tags

CCSS.8.F.A.2

CCSS.HSF.IF.C.9

The cost of renting a car from Shady Grady's Rent-a-car is $18 per day plus $0.30 per mile driven.  The cost of renting the same car at EZ-Rider Rental is $20 per day plus $0.25 per mile driven. Which company would be best if you were to drive 40 miles.

• Shady Grady's Rent-a-Car
• EZ Rider Rental
• It doesn't matter, they cost the same.

Tags

CCSS.8.F.A.2

CCSS.HSF.IF.C.9

The cost of renting a car from Shady Grady's Rent-a-car is $18 per day plus $0.30 per mile driven.  The cost of renting the same car at EZ-Rider Rental is $20 per day plus $0.25 per mile driven. Which company would you choose if you were to drive 65 miles?

• Shady Grady's Rent-a-Car
• EZ Rider Rental
• It doesn't matter, they cost the same.

Tags

CCSS.8.F.A.2

CCSS.HSF.IF.C.9

Write a rule:  A plumber charges $50 for a house call plus $12 per hour for labor.

• y = 50 x + 12
• y = 50 + 12 x
• y = 62 x
• x = 50 + 12y

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

Write a rule: The cost of renting a car cost $65 for deposit and $37.50 per day.

• x = 65 + 37.50 y
• y = 65 x + 37.50
• y= 92.50x
• y= 37.50 x + 65

Tags

CCSS.6.EE.C.9

Write a rule :  Mojo has joined a weight loss program.  His weight is 225 lbs and he is losing weight at a rate of 3 lbs per week.

• y = 222 x
• y = 225 + 3 x
• y = 225 - 3x
• y=225x - 3

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

A plane is flying into Omaha Eppley Airfield.  The plane's height and minutes  above the ground are related to each other in this function; h = 30000 - 2000m.  What do the numbers represent?

• 30000 is start height, 2000 is the feet the plane descends per minute.
• 30000 is the start speed of the plane, 2000 is how much the speed slows down.
• 2000 is the starting speed of plane, 30000 is how much speed increases.
• 2000 is the starting height, 30000 is the feet the plane descends per minute.

Tags

CCSS.HSF.LE.B.5

Describe what each part of the rule represents: 
The amount Nick has left and the number of days are related by the rule m = 50 - 5d.

• Nick starts with -5 dollars and spends $50 each day.
• Nick starts with $5 and earns $50 each day.
• Nick starts with $50 and earns $5 each day.
• Nick starts with $50 and spends $5 each day.

Tags

CCSS.6.EE.C.9