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10 Cards in this Set
- Front
- Back
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Equation for slope intercept form |
y = mx + b |
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Formula to find slope of two points (the math involved) |
Find the pattern of how X's and Y's increase (+) or decrease (-) The change in Y over the change in X (fraction) |
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x = 5 x = [_][_][_] y = [_][_][_] This equation always graphs as a ________________ line. The slope is always _________________. |
x = 5 x [5][5][5] y [_][_][_] This equation always graphs as a _VERTICAL_ line. The slope is always _UNDEFINED_. |
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y = 9 x [_][_][_] y [_][_][_] This equation always graphs as a ________________ line. The slope is always _________________. |
y = 9 x [_][_][_] y [9][9][9] This equation always graphs as a _HORIZONTAL_ line. The slope is always __ZERO_. |
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describe this line |
- linear equation - increasing - uphill - positive slope |
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describe this line |
- linear equation - decreasing - downhill - negative slope |
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A proportional graph has a line that is plotted through the _______________. (____,____) |
A proportional graph has a line that is plotted through the ORIGIN. (_0_,_0_) |
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All points on a line are _____________ to the equation. |
All points on a line are SOLUTIONS to the equation. |
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Write the equation for this real world problem: Litz needs her carpets cleaned because of Moose's drool. The cleaners charge $20 to show up and then $100 for 2 areas. m = b = y = _______________ |
m = 100/2 --> 50/1 b = 20 y = 50/1x + 20 |
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Find the slope, y-intercept and write the equation of this line: m = _____ b = _____ y = _______________ |
To find slope (m): count the rise over run OR put points in a x/y chart and find the pattern and remember slope is y over x! m = -2/4 ---> -1/2 b = 3 y = -1/2x + 3 |
