Question 458020
PROBLEM #1:
Solve the system of equations by graphing. Check your solution.
Solve each for "y" and graph both on the same set of axes.
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2x+y=-8
y = -2x-8
You need 2 points to graph the line:
(0,-8) and (-2,-4) will do
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3x-y=3
y = 3x-3
(0,-3) and (1,0)
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{{{graph(400,300,-10,10,-10,10,-2x-8,3x-3)}}}
Solution is the point at which the lines intersect:
Solution: (-1,-6)
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Checking:
2x+y = -8
-2-6 = -8
-8=-8
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3x-y = 3
3(-1)-(-6) = 3
-3+6 = 3
3 = 3
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Cheers,
Stan H.
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PROBLEM #2:
Solve the system of equations by graphing. Check your solution.
y=x+3
x+y= -2/5