Quadratic Functions

In Glogpedia

by aarthur
Last updated 5 years ago

Discipline:
Math
Subject:
Algebra I

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Quadratic Functions

y=x^2+x-2

QuadraticFunctions

y=-2x^2+7x+4

Real-life parabola

Max

Min

Vertex: (-0.5,2.25)Axis of symmetry: (-0.5,0)X intercepts: x= -2,1Y intercept: (0,-2)Domain: all real numbersRange: y≥2.25

Vertex: (1.75,10.125)Axis of symmetry: (1.75,0)X intercepts: x= -0.5,4Y intercept: (0,4)Domain: all real numbersRange: y≤10.125

X Y1 02 43 104 185 28

X Y1 92 103 74 05 -11

The a value affects whether or not a graph opens upward or downward. A negative a value results in a parabola opening downward while a positive results in a parabola opening upward.

The arch of the dolphin's body and the extension of the water behind it creates a parabola. The top of the ocean acts as the x-axis. This is an example of a wider arch, compared to the other two parabolas on here that are more narrow.


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