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Has a slope of -3 and passes through (2,1) |
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Definition
y = mx+b 1 = -3(2)+b 1 = -6+b +6 +6 7 = b y = -3x+7 |
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Passes through (2,0) and is parallel to 5x-2y = 7. |
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Definition
5x-2y = 7 (-2y = -5x+7)/-2 y=5/2x-7/2 m=5/2
y=mx+b 0=5/2(2)+b 0=5+b -5 -5 -5=b y=5/2x-5 |
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What is always true to a line that is perpendicular to another? (What do they both have?) |
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Definition
They both have to have opposite slopes. exp. m =-1/2 the line perpendicular to it m =2/1=2 |
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what do all parallel lines always have? |
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Definition
the same slope. exp. m = 2/3 the line parallel m = 2/3 |
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Passes through (4,5) and is perpendicular to y = 7 |
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Definition
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a relation in which every x-value corrosponds to one y-value. |
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set of all x-values in a relation. no repeating |
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Definition
set of all y-values, no repeating. |
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what is the slope of a horozontal line? |
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What is the slope to a vertical line? |
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other than using standard form how can you find the slope? |
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Definition
(x1, y1) (x2, y2) m = y1-y2/x1-x2 |
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