Write Equation Given Slope & Y-Intercept
Write Equation Given Slope and a Point
Write Equation Given Two Points
Write Equation Parallel or Perpendicular
WorLd Problems and Correlation
100
slope: 3 y-intercept: 6
What is y = 3x + 6
100
(0, 4); m = 2
What is y = 2x + 4
100
(0, 4), (3, 13)
What is y = 3x + 4
100
(0, -6); y = 3x + 5 (PARALLEL)
What is y = 3x - 6
100
An increase in study time and an increase in test score is an example of what type of correlation...
What is a Positive Correlation
200
slope: -2 y-intercept: 4
What is y = -2x + 4
200
(0, -5); m = -3
What is y = -3x - 5
200
(0, 2), (9, 5)
What is y = 1/3x + 2
200
(0, 2); y = -1/2x - 1 (PARALLEL)
What is y = -1/2x + 2
200
An increase in time and a decrease in health is an example of what type of correlation...
What is a Negative Correlation
300
slope: 1/2 y-intercept: -5
What is y = -1/2x - 5
300
(-1, 5); m = -4
What is y = -4x + 1
300
(0, -1), (-6, -9)
What is y = 2/3x - 1
300
(5, 4); y = 3x + 5
What is y = 3x - 11
300
Your science class is taking a field trip to an observatory. The cost of the presentation is $60 for the group plus an additional $3 per person. Write an equation in y=mx+b that gives the total cost as a function of the number of people in the group
What is y = 3p + 60
400
m: -1 b: 1
What is y = -x + 1
400
(3, 8); m = 2
What is y = 2x + 2
400
(1, -2), (-2, 13)
What is y = -5x + 3
400
(-12, -2); y = 3x + 2 (PERPENDICULAR)
What is y -1/3x - 6
400
You have a $25 gift card for a bagel shop. A bagel costs $1.25. Write an equation in y=mx+b that gives the amount that remains on the card as a function of th e total number of bagels you have purchased so far.
What is y = -1.25x + 25
500
m: -7/10 b: 0
What is y = -7/10x
500
(-6, 3); m = 2/3
What is y = 2/3x + 7
500
(-4, 2), (-2, 16)
What is y = 7x + 30
500
(15, -11); y = 3/5x - 8 (PERPENDICULAR)
What is y = -5/3x + 14
500
You are buying ribbon to make costumes for a school play. Organza ribbon costs $.07 per yard. Satin ribbon costs $.04 per yard. Write an equation in y=mx+b to model the possible combinations of yards of organza ribbon and yards of satin ribbon you can buy for $5.
What is 5 = 0.07x + 0.04r
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