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**Writing equations in slope intercept form**

Y = mX + b Slope or Rate of change Y intercept

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**4 5 Y = -⅘X - 3 The line has a negative trend**

So the slope is - ⅘ Y The y intercept is at 0, -3 So the equation for the line is…… 4 X Y = -⅘X - 3 5

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**4 12 Y = ⅓X + 6 The line has a positive trend So the slope is ⁴⁄₁₂ = ⅓**

The y intercept is at 0, 6 So the equation for the line is…… Y = ⅓X + 6

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**2 1 Y = 2X + 1 The line has a positive trend So the slope is ²⁄₁ = 2**

The y intercept is at 0, 1 1 X So the equation for the line is…… Y = 2X + 1

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**2 3 Y = -⅔X - 1 The y intercept is at 0, -1**

So the equation for the line is…… Y = -⅔X - 1 2 X 3 The line has a negative trend So the slope is - ⅔

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**Y = ½X + 6 Y = ½X + 0 Y = ½X - 4 Parallel lines will ALWAYS**

Have the same slope Y = ½X + 0 X Y = ½X - 4

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Y X Horizontal line Y = 2

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Y Vertical line X = - 5 X

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**The line has a negative trend So the slope is The y intercept is at**

So the equation for the line is…… X

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**The line has a positive trend So the slope is**

Y X The line has a positive trend So the slope is The y intercept is at So the equation for the line is……

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**The line has a positive trend So the slope is**

Y The y intercept is at X So the equation for the line is……

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**So the equation for the line is……**

The y intercept is at Y So the equation for the line is…… X The line has a negative trend So the slope is

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Y X

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Y X

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Y X

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