Interpreting Slope and Intercepts

1.

Multiple Choice

5 mins

1 pt

Charlie rented a moving truck. He paid a daily fee plus a per-mile fee to rent the truck. The equation below represents the daily amount Charlie paid for the truck if he drives it x miles.
y=0.5x+10
What does the slope of the graph of this equation represent?

The daily fee for the moving truck

The per-mile fee for the moving truck

How much Charlie paid for the truck

The number of miles he drove

2.

Multiple Choice

5 mins

1 pt

The graph represents gasoline consumption when driving a certain distance in km. What is the meaning of the slope?

The tank started with 50 L of gasoline

the amount of gasoline consumed per km driven

the distance it takes to lose a Liter of gas

the gasoline is leaking because the slope is negative.

3.

Multiple Choice

5 mins

1 pt

The table represents a used car salesman's monthly salary including commission made on the sale of cars. What is the y-intercept and what does it represent?

The y-intercept is $850/car and it represents the commission per car sold.

The y-intercept is $1500/car and it represents the commission per car sold.

The y-intercept is $1500 and it represents the monthly salary before commission.

The y-intercept is $2775 and it represents the monthly salary before commission.

4.

Multiple Choice

5 mins

1 pt

An online music service lets customers download an unlimited number of songs for $0.25 each after paying a monthly membership fee of $5.00. The total amount of money a customer spends on music in dollars in a single month can be found using the function y=0.25x+5. What does the variable x represent in this function?

The total amount of money the customer spends on music each month

The number of songs the customer downloads each month

The number of customers that use the music service

The cost of downloading one song

5.

Multiple Choice

5 mins

1 pt

The equation c = 0.20t + 3.50 shows the relationship between the charge c in dollars for renting a kayak for t minutes.What is the meaning of the y-intercept?

It costs $3.50 per minute to rent a kayak.

For $0 you can rent a kayak for 3.5 minutes.

Every 3.50 minutes, you have to pay $1.00.

You have to pay $3.50 up front before using the kayak.

6.

Multiple Choice

5 mins

1 pt

The equation c = 0.20t + 3.50 shows the relationship between the charge c in dollars for renting a kayak for t minutes. What is the meaning of the slope of the equation?

For $1.00, you can rent a kayak for 20 minutes.

It costs $0.20 per minute to rent the kayak.

You have to pay $0.20 up front before using the kayak at all.

Every .2 minutes, you have to pay $1.00.

7.

Multiple Choice

5 mins

1 pt

The graph represents the height of a burning candle. What is the meaning of the y-intercept?

the time it takes to burn the entire candle

the rate at which the candle is losing height

the change in the height of the candle each hour

the original height of the candle

8.

Multiple Choice

5 mins

1 pt

What line has the steepest slope?

All slopes are equal

Red

Blue

Green

9.

Multiple Choice

5 mins

1 pt

What does the slope represent in this situation?

The sloth runs 1 feet in 3 minutes

The sloth runs 3 feet in 1 minute

The sloth runs fast

The sloth runs 6 feet in 1 minute

10.

Multiple Choice

5 mins

1 pt

Which runner was faster?

Runner A

Runner B

11.

Multiple Choice

5 mins

1 pt

What does the x-intercept of the graph represent?

The number of cookies the presenter had before making any presentations

The maximum number of cookies the presenter gave away during every presentation

The number of presentations the presenter made per hour

The maximum number of presentations the presenter made before running out of cookies

12.

Multiple Choice

5 mins

1 pt

What does the y-intercept represent?

The amount of each deposit made

The initial amount of money in the savings account

The number of deposits made

The amount of money in the savings account after 50 deposits

13.

Multiple Choice

5 mins

1 pt

What does the rate of change represent?

The population increased 5,700 every year

The initial population was 193,000

The population decreased 5,700 every year

The population increased 193,000 every year

14.

Multiple Choice

5 mins

1 pt

What does the slope mean in the context of the problem?

The cost will increase by $1.40 per topping

The cost will decrease by $1.40 per topping

The cost will increase by $1.90 per topping

The cost will decrease by $1.90 per topping

15.

Multiple Choice

5 mins

1 pt

What is the meaning of the y-intercept?

The hamburger will cost $1.90 without any toppings.

The hamburger will cost $1.40 without any toppings.

The cost of the hamburger is $1.90 with one topping

The cost of the hamburger doesn't change no matter how many toppings there are.

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