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Quadratic Equations
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Key Concepts:
Terms in this set (14)
quadratic function
a function that can be written in the standard form y=ax² + bx +c , where a,b,c are real #'s and a ≠ 0
parabola
the shape of the graph of a quadratic function
vertex
The point (x,y) of a parabola where it crosses the axis of symmetry.
maximum
The highest point of a parabola.
minimum
The lowest point of a parabola.
axis of symmetry
The line that splits the parabola in two.
reflect
To plot points the same distance away from both sides of the axis of symmetry.
zeros
The roots or x-intercepts of a function.
axis of symmetry (formula)
x = -b/2a
upwards parabola
when "a" is positive
downwards parabola
when "a" is negative
domain of a quadratic function
all real numbers
range of a quadratic function
the y values
y intercept of a quadratic function
where the parabola cross the y axis (the "c" value)
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