Slope

Y-intercept

Vocabulary

Word Problems

Linear Functions

Find the slope of (5,4)(6,7)

What is 3?

find the y-intercept from (1,2) m=2

What is b=0?

The initial value of a linear function

What is Y-intercept

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?

Find the equation of the line (2,4) m=2

What is y=2x

What is the slope of (2,6) (1,8)

What is -2?

Find the y-intercept from (2,5) m=3

What is b=-1?

How steep a linear function is.

What is slope?

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?

Find the equation of the line (4,2) m=5

What is y=5x-6?

Find the slope from the following points: (2,4) (3,6)(4,8)(5,10)?

What is 2?

Find the y-intercept (-2,5) m=-3

What is b=-1?

The equation of this type of function has an exponent of 2

What is a quadratic function?

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?

Find the equation of the line (-2,1) m=-4

What is y=-4x-7?

Find the slope (-4,-8) (1,3)

What is 11/5?

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

What is b=1

y=mx+b is the format for a linear equation.

What is slope intercept form?

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?

Find the equation of the line from the following points (2,1)(3,2)(4,3)(5,4)

What is y=x-1?

Find the slope (2.5,.5)(6,3)

What is 2.5/3.5?

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

What is b=-1/2

A function that increases and decreases and may have a curve

What is a non-linear function?

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?

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

What is y=x+3?

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