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The chapter 5 vocabulary of lines

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Constant of variation

what the k is in the equation y = kx

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Axes

Two perpendicular number lines.

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Coordinate planes

The plane formed by 2 number lines that intersect at their zero points dividing the plane into 4 quadrants

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Parallel lines

Lines in a plane that never intersect

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Function

A relation in which X never repeats

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Function notation

Replace the Y with f(x)

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Perpendicular lines

two lines that meet and form a right angle

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Rate of change

A change in a quality over time (slope)

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Point-slope form

y-y1 = m(x-x1)

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Mapping

The domain is pair with with an element in the range

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Origin

The point of intersection of the y and x axis in a coordinate plan (0,0)

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Slope

rise /run a ratio that measures a lines' steepness

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Slope-intercept form

Y=mx+b

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Solution

An order pair that make an equation true

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Terms

values in a mathematical sentence that are separated by an addition or subtration sign

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X-axis

The horizontal line on a coordinate plane

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X-coordinate

The first number in a ordered pair, domain

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X-intercept

The X-coordinate at which a graph intercepts the x-axis

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Y-axis

The vertical line on a coordinate plane

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Y-coordinate

The second number in a ordered pair, range

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Y-intercept

The Y-coordinate at which a graph intercepts the y-axis