Initial Value Rate of Change Word Problems

Tim bought a new phone.  He paid $125 on the day of purchase, then $50 per month until it was paid off. What is the rate of change in this situation?

• 50

• 125

What is the initial value of this graph?

• 1

• -2

• 0

• 3

Tim bought a new phone.  He paid $125 on the day of purchase, then $50 per month until it was paid off. What is the initial value in this situation?

• 50

• 125

Select ALL that mean the same thing as the rate of change.

• Slope

• Unit Rate

• Constant of Proportionality (Only if proportional)

• Initial Value

Find the rate of change.

• 4 burgers per person

• 6 burgers per person

• 2 burgers per person

• 2 people per burger

Use the graph to calculate the rate of change.

• 1

• -1

• 2

• -2

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?

• y=225x+11000

• y=11000x+225x

• x=225y+11000

• y=225x

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?

• x=2y+5

• y=2x+5

• y=5x+2

• y=10x

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?

• y=4x

• y=20x+5

• y=5x+20

• y=100x+20

Alan buys a new car for $25,000. It depreciates at a rate of $2000 per year. Create an equation that can be used to find y, the value of the car, if x represents the number of years?

• y=-2000x-25000

• y=-25000x+2000

• y=23000x

• y=-2000x+25000