Interpret Linear

What is the y intercept of this equation?

• P

• 6.25

• x

• 75

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 

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.

Sandra has a $20 itunes gift card and spends $3 each month.  Which equation can be used to find how much money Sandra has on her giftcard after x months?

• y = 3x + 20

• y = 3 + 20x

• y = -3x + 20

• y = -20x + 3

Which equation shows the number of bottles left after x days?
A family buys a case of water with 48 bottles and drinks 5 bottles per day.

• y = 48x + 5

• y = -5 + 48x

• y = -5x - 48

• y = 48 - 5x

What is the meaning of the y-intercept?

• The weight in the bucket increases by 1 pound per pound of sand.

• Before sand is put in the bucket, it weighs 1 pound.

• The starting weight of the sand is 1 pound.

• The weight in the bucket decreases by 1 pound per pound of sand.

What type of association does this graph have?

• positive

• negative

• none

• all of the above

The graph shows the candle's height (cm) as it burns (minutes).  What does the slope MEAN?

• The candle burns 1 cm every minute.

• The candle burns 2 cm every 2 minutes.

• The candle burns 2 cm every minute.

• The candle burns 1 cm every 2 minutes.

Is there a constant rate of change represented in the graph below?  If so, what is it and interpret its meaning?

• Yes, 6 pounds per person

• Yes, 3 pounds per person

• Yes, 3 people per pound

• Not a constant rate

The function C(m)=2.25+0.75m represents the total cost (C) you have to pay to take a cab m miles. What is the meaning of the slope?

• The cost of the trip will increase by $0.75 per mile. 

• You will have to pay $2.25 before you travel any miles. 

• You will have to pay $0.75 before you travel any miles.

• The cost of the trip will increase by $2.25 per mile.