Slope
Y-intercept
Vocabulary
Word Problems
Linear Functions
100
Find the slope of (5,4)(6,7)
What is 3?
100
find the y-intercept from (1,2) m=2
What is b=0?
100

The value of the output when the input is 0; the y-intercept

What is initial value?

100
Ismael started the day with an irrigation pipe of 120 feet long. He used the equation L=15s+20 to determine the total length of the pipe as new sections of pipe, s. were welded on to the end. What is the slope of the line? What does the slope represent in the context of the problem?
What is 15 feet for each section of pipe?
100
Find the equation of the line (2,4) m=2
What is y=2x
200
What is the slope of (2,6) (1,8)
What is -2?
200
Find the y-intercept from (2,5) m=3
What is b=-1?
200

Another name for the slope of a line

What is constant rate of change?

200
Ricardo is draining his pool for the winter. There are 240 gallons in the pool and it is decreasing at a rate of 20 gallons per hours. Write an equation to represent the relationship between the amount of water in the pool, y, and the number of hours the pool has been draining, x.
What is y=240-20x?
200
Find the equation of the line (4,2) m=5
What is y=5x-6?
300
Find the slope from the following points: (2,4) (3,6)(4,8)(5,10)?
What is 2?
300
Find the y-intercept (-2,5) m=-3
What is b=-1?
300

A relation where every input (x-value) has exactly one output (y-value)

What is a function?

300
Steven is learning to scuba dive. The equation D=20L+15 represents the depth he cna dive in feet, D, based on the number of lessons he has had, L. How deep can Steven dive after he takes 13 lessons?
What is 275 feet?
300
Find the equation of the line (-2,1) m=-4
What is y=-4x-7?
400
Find the slope (-4,-8) (1,3)
What is 11/5?
400
Find the y-intercept (2,3)(3,4)(4,5)(5,6)
What is b=1
400

A period of time between two points of time or events

What is an interval?

400
David works at the T-shirt shack selling tees. The equation y=15x-520 represents the profit that the T-shirt Shack makes for each t-shirt sold, where y is the total profit and x is the number of t-shirts sold. How many t-shirts does the T-shrit Shack need to sell to make a profit of $140?
What is 44 t-shirts?
400
Find the equation of the line from the following points (2,1)(3,2)(4,3)(5,4)
What is y=x-1?
500
Find the slope (2.5,.5)(6,3)
What is 2.5/3.5?
500

Find the y-intercept (-4,6) (-2,5)(0,4)(2,3)

What is b=4

500

A graph that does not have numbers 

What is a qualitative graph?

500
Alex paints faces at kids' birthday parties to earn extra money. The equation M=2.50f+12 represents the relationship between the money she makes, M, and the number of faces she paints, f. Alex wants to buy a new pair of Uggs that cost $119.50. How many faces does she need to paint?
What is 43 faces?
500

Find the equation from the following points (-2,5)(0,3)(2,1)

What is y=-x+3?

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