Vertex Form
Where is the vertex?
f(x) = -(x + 3)2 - 1
what is (-3,-1)?
What is the equation for the line of symmetry:
y = 3(x - 2)2 + 10
x = 2
Where is the y-intercept?
f(x) = x2 + 2x - 10
(0,-10)
What is the GCF: 3x3 - 12x
What is 3x?
Solve by factoring:
x2 + 5x + 6 = 0
What is x = -3 or x = -2?
What is the vertx?
f(x) = -x2 - 1
What is (0, -1)?
What is the axis of symmetry?
y = -2x2 - 8
What is x = 0?
What is the concavity?
y= -x2 + 3x + 5
What is concave down?
Factor out the GCF:
2x2 - 10x
2x(x - 5)
Solve by factoring.
x2 - 7x = -10
What is x = 2 or x = 5?
What is the vertex?
f(x) = x2 - 10x + 14
What is (5, -11)?
What is the domain and range?
y = -(x + 5)2 + 7
Domain: (-infinity, infinity)
Range: (-infinity, 7]
Rearrange into standard form:
y= (x + 1)2 - 6
What is y = x2 + 2x - 5?
Factor:
x2 + 14x + 28
(x + 12)(x + 2)
What are the x-intercepts of x2 - 4 = 0
What is (0, 2) and (0, -2)?
What is the vertex?
f(x) = 2x2 + 4x - 6
What is (-1, -8)?
Where is the line of symmetry?
y = x2 + 6x - 11
x = -3
Rearrange into standard form:
y= 1/3(x - 9)2
What is y = 1/3x2 - 6x + 27?
Factor:
x2 - 25
(x + 5)(x - 5)
Solve by factoring.
2x2+ 7x + 3 = 0
What is x = -1/2 or x = -3?
What is the vertex?
y = -1/3x2 + 4x - 1
What is (6, 11)?
What is the axis of symmetry?
y = x2 + 4x + 5
What is x = -2?
Rearrange into standard form:
y = 2/5(x + 10)2 - 8
What is y = 2/5x2 + 8x + 32?
Factor:
2x2 - 4x - 6
2(x + 1)(x - 3)
What are the x-intercepts of
3x2 +8 = -10x
What are (0, -4/3) and (0, -2)?