Standard Form
What is quadratic standard form?
ax^2 + bx + c = 0
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Find at least 1 point for the following:
f(x)=-(x+6)2
teacher checks
What is the first step to solving a quadratic problem?
Finding your vertex
"U" Shape
What is the axis of symmetry used for?
To find the y-value in the vertex OR to cut the parabola in half
What is factored form?
y = (x-p)(x-q)
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What is the correct formula when solving and graphing quadratics?
What is the y-intercept
y=-x2-6x-3
(0, -3)
What are the x-intercepts of:
y=1/8(x-6)(x+2)
(6,0) and (-2,0)
An object is launched from a platform.
Its height (in meters), seconds after the launch, is modeled by:h(x)=-5(x-4)2+180
What is the height of the object at the time of launch?
(4, 180) 180- meters
What is the formula for solving vertex Quadratics?
y=a(x-h)2+k
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What is the y-intercept:
y=1/8(x-6)(x+2)
(0, -1.5)
Find the zeros
y=-2(x-1)2-4
no real solutions
Is the vertex the axis of symmetry?
Yes
What shifts a parabola up or down?
If "b" is positive, then the parabola moves upward, and if it is negative, it goes down.
What is the vertex
y=-x2-6x-3
(-3,6)
What is the vertex:
y=1/8(x-6)(x+2)
(2, -2)
Find the zeros
y=-1(x-3)2+4
(1,0) (5,0)
What is the axis of symmetry formula for slandered form?
x=-b/2a
What does "C" do in a parabola?
Where the graph intersects the y-axis.