Word Problems and Function Notation

1. There were approximately 11,000 students enrolled at Western Carolina last year. This figure goes up by about 225 students each year. Create an equation that can be used to find y, the total number of students, if x represents the number of years? (a)  

• y=225x+11000
• y=11000x+225x
• x=225y+11000
• y=225x

Tags

CCSS.HSF-BF.A.1A

2. Ted's Taxi service charges a $5 pick up fee plus $2 per mile. Create an equation that can be used to find y, the total cost, if x represents the number of miles? (a)  

• x=2y+5
• y=2x+5
• y=5x+2
• y=10x

Tags

CCSS.6.EE.C.9

3. Kadi is starting a kayak rental company. She is going to charge $20 to rent the kayak plus $5 per hour of rental. Create an equation that can be used to find y, the total cost to rent a kayak, if x represents the number of hours rented? (a)  

• y=4x
• y=20x+5
• y=5x+20
• y=100x+20

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

Mrs Curren plans on running 20 minutes everyday. Write an equation assuming she has already ran 140 min. (a)  

• y=20x+140
• y=-20x-140
• y=20x-140
• y=-20x+140

Tags

CCSS.6.EE.C.9

James has been gaining 5 pounds every year. He currently weighs 150. If he continues his trend of gaining 5 pounds a year, how much will he weigh in 3 years? (a)  

• 175 oz
• 165 lbs
• 175 lbs
• 165 oz

Tags

CCSS.HSF.BF.A.2

Lee charges $3 for a basket and $2.50 for each pound of fruit picked at the orchard. Write an equation in y = mx + b form for the total cost of x pounds of fruit from the orchard. (a)  

• y = 3x + 2.5
• y = 2.50x + 3
• y = 2.50x 
• y = 3x + 2.50

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

Betty owes Maggie $50. Betty pays Maggie back $2 a day. Click on the equation showing the money that Betty still has to pay back. (a)  

• 50=2x
• y=2x-50
• y=50x-2
• 2=50x

Tags

CCSS.6.EE.C.9

You plan to go snowboarding. The resort charges $15 an hour in addition to $25 to rent a board. Write an equation that represents the cost to go snowboarding for the day. (a)  

• y=15x-25
• 15x+25y=100
• 25x+y=15
• y=15x+25

Tags

CCSS.6.EE.C.9

What is the slope formula for this word problem? (a)  

• y = 2x + 10
• y = 10x + 2
• y = 2x
• y = 10x

Tags

CCSS.8.EE.B.5

f(x) is the same thing as (a)   .

• y
• x
• input
• an equation

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1