Australian

Write an equation in slope-intercept form of the line with the given slope and point: slope = 3 and (1, -2).

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viniterranova

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The equation form is y=ax+b.

lgbasallote

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use the formula \[y - y_1 = m(x-x_1)\]
y1 is the y coordinate
x1 is the x coordinate
and m is the slope
just substitute into the formula. it's very straightforward

viniterranova

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y-(-2)=3(x-1)

viniterranova

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y+2=3x-3

viniterranova

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y=3x-3-2

viniterranova

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y=3x-5

Australian

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oh okay, I understand. so what I had to do was plug the numbers in.

viniterranova

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Yes, just plug the numbers.

Australian

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thank you!

viniterranova

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You are welcome