Slope and Coordinate Plane

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20 Terms

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coordinate plane

a grid formed by a horizontal line called the x-axis and the vertical line called the y-axis

<p>a grid formed by a horizontal line called the x-axis and the vertical line called the y-axis</p>
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x axis

The horizontal number line on a coordinate plane

<p>The horizontal number line on a coordinate plane</p>
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y axis

the vertical number line in a coordinate plane

<p>the vertical number line in a coordinate plane</p>
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x coordinate

the first number in an ordered pair

<p>the first number in an ordered pair</p>
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y coordinate

the second number in an ordered pair

<p>the second number in an ordered pair</p>
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ordered pair

Two numbers that can be used to locate a point on a coordinate plane

<p>Two numbers that can be used to locate a point on a coordinate plane</p>
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origin

(0,0)

<p>(0,0)</p>
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to plot

To mark a point on a coordinate grid using an X and a Y coordinate.

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(-1, 2)

x = -1, y = 2

<p>x = -1, y = 2</p>
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(3, 3)

x = 3, y = 3

<p>x = 3, y = 3</p>
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slope

Rise over run

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positive slope

line that goes up from left to right

<p>line that goes up from left to right</p>
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negative slope

a line that goes down from left to right

<p>a line that goes down from left to right</p>
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rise

the change in the y-values of two points on a line

<p>the change in the y-values of two points on a line</p>
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run

the change in the x-values of two points on a line

<p>the change in the x-values of two points on a line</p>
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quadrant

one of four sections of a coordinate plane

<p>one of four sections of a coordinate plane</p>
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slope-intercept form

y = mx + b

<p>y = mx + b</p>
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y intercept

where the line crosses the y axis

<p>where the line crosses the y axis</p>
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m

slope

<p>slope</p>
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slope formula

m = (y2 - y1) / (x2 - x1).