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Find Slope :
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y = 3x + 4
Slope = 3
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Form equation :
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y = 3x + b
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Find y-intercept :
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At (1, 2)
2 = 3(1) + b
2 = 3 + b
b = -1
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Form equation :
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y = 3x -1
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Answer: y = 3x - 1
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