The standard form of quadratics
y=ax^2+bx+c
The vertex form of quadratics
y=a(x-h)^2+k
The factored form of quadratics
y=a(x-r)(x-s)
Does the graph of
-2(x + 5)2 + 2
have a minimum or a maximum?
Maximum
What is the vertex ?
(3,-1)
The value of y -intercept of quadratics in standard form
c
Values of a to reflect
y = a (x - h)^2 + k
a < 0
The factored form of
x^2-6x+8
(x-2)(x-4)
What is the vertex of the equation
y= (x-12)2+7 ?
(12, 7)
Quadratic equations take the shape of a what when graphed.
u
The y-value of
y = x^2 + 2x + 1 at
x=-4
y=9
The vertex of
-2 (x + 4)^2 + 2
(-4,2)
Find the axis of symmetry
y=3x2+12x-4
x=2
When x2 is changed to x2 -3, the graph
Shifts down 3 units.
How many solutions does this graph have?
No solution
What is the y-intercept of the following function
y=3x2+4x-6
y=-6
or (0,-6)
The y -intercept of
y = 2(x+3)^2 - 8
y=10
The equation an which the quadratic reflects its self?
Axis of symmetry
A parabola has a vertex at (-3,2). Where is the axis of symmetry?
x = -3
Name the zero ?
0 and 4
Describe all transformations
y=-a(x+6)^2+4
reflects
translates left 6
up 4
Transformation(s) of
-4 (x + 6)^2 - 4
1. vertical stretch by a factor of 4
2. vertical shift 4 units down
3. horizontal shift 6 units left
4. vertical reflection (flipped upside down)
How does the value for "h" transform a graph?
Horizontal Shift
widen/narrow
flip
what is the solution ?
1 and 3