Solve the systems of equations using substitution 4x + 2y = 16 and y = -Â―x + 5
(2, 4)
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15
How many solutions does the system of equations Y = -5x + 4 and Y = 5x + 7 have? What would the graph of both equations look like?
One solution. Two graphs crossing at one point.
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15
The solution to the system is (5, -19) Choose the equation that might make up the system. A.) Y = -3x - 6 B.) Y = -7x + 16 C.) Y = 2x - 23 D.) Y = x - 17
B.
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10
Solve the equation 4x - 8 = 5(x - 7)
x = 27
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lifesaver
Give 25 points!
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rocket
Go to first place!
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fairy
Take points!
5
10
15
20
25
banana
Go to last place!
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15
How many solutions does the system of equations Y = 5x + 4 and Y = 5x + 7 have? What would the graph of both equations look like?
No solution. Two parallel lines.
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15
How many solutions does the system of equations Y = 5x + 4 and Y = 5x + 4 have? What would the graph of both equations look like?
Infinite solutions. Both lines are on top of each other.
