Multiplying Integers
Finding x - intercepts
Vertex Form
Standard, Factored, and Vertex Form
Vocabulary
100
1 * 4
4
100
Which is my x - intercept
(0, 3) or (-4,0)
(-4,0)
100
What is the formula for vertex form?
y = a(x-h)+k
100
What is standard form? Give and example.
ax2 + bx + c
100
Define vertex?
the turning point of the parabola
200
100000000000 * 0
0
200
What is my x coordinate from the point (-6,9)?
-6
200
What is my vertex in the following y = a(x-h)+k?
Vertex: (h,k)
200
Am in factored form y = (x-5)(x+5)?
yes
200
What is the minimum?
When the vertex is the lowest point.
300
(-6)(-7)
42
300
What are my x - intercepts y = (x - 3)(x - 2)?
(3,0) and (2,0)
300
What is my vertex in the following y = -3(x-5) -16
vertex: (5, -16)
300
Am I in vertex form y = 3(x-4)+12?
yes
300
What is the maximum?
When the vertex is the highest point.
400
(12)(-4)
-48
400
What are my x - intercepts y = (x-13)(x+200)
(13,0) and (-200,0)
400
Is my parabola going to be happy or sad in the following y = -4(x+4)+13 and why?
Sad because a=-4
400
Am I in standard form, y = x-1?
No
400
What is the axis of symmetry?
the vertical line that divides the parabola into 2 equal parts.
500
(-2)2
4
500
(-1,0) and (3,0)
500
Is my parabola happy or sad for the following y = (x-4)+4 and why?
happy because a = 1
500
Am I in standard form x2+7x=-3?
No
500
What is x8 * x4?
x12