Question
Solve the following system of equations graphically:
3x + 2y = 12,
5x - 2y = 4
3x + 2y = 12,
5x - 2y = 4
✓
Answer
$\text{3x}+\text{2y}=12$ $\Rightarrow\text{y}=\frac{12-\text{3x}}{2}$
$\text{5x}-\text{2y}=4$ $\Rightarrow\text{y}=\frac{\text{5x}-4}{2}$
Since the two graph intersect at (2, 3), x = 2 and y = 3
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x:
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0
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2
|
|
y:
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6
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3
|
|
x:
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0
|
2
|
|
y:
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-2
|
3
|
Since the two graph intersect at (2, 3), x = 2 and y = 3
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