slope
This type of slope goes UP from left to right
positive
Solve the system of linear equations:
y = 2x - 2
y = 2x + 9
no solution
Find the y-intercept of y = 7x - 2.
-2
This type of slope is vertical.
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Solve the system of linear equations:
y = 3x + 1
-x + 2y = -3
-1,-2
What is the slope (growth) of y = 3x + 5
3
This type of slope travels downward from left to right.
negative
Solve the system of linear equations:
y = 5x - 9
y = 5x + 9
no solution
Andy and his girlfriend Jane want to buy iPods. Andy has $215 and can save $35 each week. Jane has $380 and can save $20 each week. Write an equation for EACH person when x is the number of weeks and y is the savings.
What is 11 weeks. ($600)
find slope
m=0
Solve the system of linear equations:
y = 8x - 2
y - 8x = -2
A lot of equations
Another name for growth is....
slope
y = -3x - 2
-3
Describe and correct the error in solving the system of linear equations.
y = -2x + 4
y = -2x + 6
The lines have the same slope so there are infinitely many solutions.
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The lines have the same slope but different y-intercepts so therefore they are never going to intersect = No Solution.
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Andy and his girlfriend Jane want to buy iPods. Andy has $215 and can save $35 each week. Jane has $380 and can save $20 each week. Write an equation for EACH person when x is the number of weeks and y is the savings.
What is y = 35x + 215, and y = 20x + 380?
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Team 1
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