x, y, or any letter that can represent a number that we don't know
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vertex of a parabola
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highest or lowest point in a parabola
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quadratic function
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degree of 2
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linear standard form
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slope
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steepness of a line, rise/run
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domain
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All possible x values of a function
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terms
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negative exponent
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Negative is the opposite of positive and division is the opposite of multiplication, so a number with a negative exponent should be moved to the denominator of a fraction and the exponent switched to positive.
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zero exponent
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coefficient
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a number that is in front of a variable
A number multiplied by a variable.
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irrational numbers
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coordinate plane
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A two-dimensional number line where the vertical line is called the y-axis and the horizontal is called the x-axis. These lines are perpendicular and intersect at their zero points called the origin.
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expression
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quadratic parent function
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y=x^2
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point slope form
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axis of symmetry
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A line that divides a parabola into two congruent reflected halves.
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absolute value
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The distance a number is from zero
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rational number
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1/2, .75, -2.2, 9
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x-intercept
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A place where a function crosses the x-axis represented by x in the formula y=mx+b.