y=mx+b
y=mx+b word problems
Linear, Inverse or Neither?
Halloween
Interpreting Data
100
Find the slope in the equation y=5x-6.
a)Write the slope as a fraction.
b)Explain how many spaces up or down, and how many spaces left or right you would go to graph this slope.
a) 5/1
b) up 5, right 1
100
Dominoes charges a $3 delivery fee plus $7 per pizza. Write an equation that represents this.
y=7x+3
100
Label each equation as linear, inverse or neither.
a) y = 4x + 7
b) y = x4 (0.5)
c) xy = 100
a) linear
b) neither
c) inverse
100
What are the standard halloween colors?
orange and black
100
A veterinarian collected data on the weight of local dogs compared to their height. Describe the relationship between dog height and dog weight. 
As dog height increases, dog weight also increases.
200
Find the y-intercept of the line y=7x-14?
Write your answer as an ordered pair.
(0,-14)
200
Sprinkles cupcakes charges a $2 service fee plus $4 per cupcake. Write an equation to represent this.
y=4x+2
200
Inverse: Friends x slices always equals 16
200
Do most trick or treaters prefer chocolate or sour candy?
chocolate candy
200
About how tall will a dog be that weighs 32 pounds?Explain how the estimate can be found using a line of best fit on the graph. 
The data is mostly linear. If I draw a line of best fit, then I can start at 32 pounds on the y axis, go over to my line, and then down to height. I see that the dog would be approximately 15 inches tall.
300
A linear function passes through (0,-7) and has a slope of -6/5. Write an equation for the line.
y = -6/5x -7
300
Sprinkles cupcakes charges a $2 service fee plus $4 per cupcake. How many cupcakes can Mrs. Henderson buy with $30?
7 cupcakes (they better be giant cupcakes!)
300
Linear - although there are jumps in the table, it has a constant rate of change
ex 4/2 = 2 and 8/4 = 2. The slope is always 2
300
What country is considered the birth place of Halloween?
Ireland
300
Estimate the correlation coefficient. Would the value be closer to 0, 0.5 or 1? Explain your reasoning. 
The correlation coefficient would be closer to 0.5.
1 means the data is perfectly in a line, and 0 means there is no pattern.
400
A linear function passes through (0,2) and (4,6).
a)What is the y-intercept?
b)What is the slope?
c)Write an equation for the line.
a) (0,-2)
b) rise is 6-2 = 4, run is 4 - 0 =4. and 4/4 = 1. The slope is 1
c) y = x +2
400
Dominoes charges a $3 delivery fee plus $7 per pizza. How much will it cost to order 5 pizzas?
$38
400
What is the y-intercept of the line -5x-17y=-34
y=2
400
What squash do people typically make jack o lanterns out of?
Estimate how many seeds are in this average squash.
Pumpkin
500 seeds
400
Find the amount of pizza each person gets when there are 5 friends sharing pizza.
Friends x Slices = 16
5 friends x ____ = 16
16 ÷ 5 = 3.2 slices
500
A line passes through (0,-6) and (-5, -8).
a) what is the y-intercept?
b) what is the slope?
c) write an equation for the line
a) (0,-6)
b) Rise: -8- (-6) = -2. Run: -5 - 0 = -5. Slope is -2/-5 which is 2/5.
c) y = 2/5x - 6
500
Teresa has $9,000 saved. She pays $1,500 per month in rent. How many months can Teresa pay rent before she runs our of savings?
6 months
500
What is the x-intercept of the line -x-2y=-6
x=6
500
What famous magician died on Halloween?
Houdini
500
How many people would be predicted to be at FibArk when there is a 50% chance of rain? How many people would be taking naps at a 50% chance of rain?
Attendance to Fibark is decreasing by 800 for each increase of 20% rain. Half of 800 is 400. 3,600 - 400 = 3,200 people.
Nap takers: Increasing by 150. Half of 150 = 75. 600 + 75 = 675 people