In Glogpedia

by aarthur
Last updated 7 years ago

Discipline:
Math
Subject:
Algebra I
7   1st Equation

2nd Equation

y=-x^2+2x-1

y=2x^2-2

their graphs

This rollercoaster is an example of a real life parabola. It is an example because it is a symmetrical curve being "U" shaped.

When a graph opens upward, like this, it means the "a" value is positive (this is a minimum graph)

When a graph opens downward like this, it means the "a" value is negative (this is a maximum graph)

How you can find the Axis of Symmetry by hand is by using the formula -b/2a

Need to know

the formula for a quadratic equation is ax^2+bx+c

Maximum Graph- Graph is opening downward, the a value is negative, and it looks like a upside down "u"

Minimum Graph- Graph is opening upward, the a value is positive, and it looks like a "u"

The Domain will always be all real numbers in parabolas because they go on forever.

2x^2-2 x l y -1 l 0 0 l -2 1 l 0 2 l 6 3 l 16

x^2+2x-1 x l y -1 l -4 0 l -1 1 l 0 2 l -1 3 l -4

their tables