(8A) Vertex Form
The vertex of
f(x)=3(x-2)^2+5
What is
(2, 5)
The x-intercepts of
y = 2(x - 4)(x - 1)
What are
(4, 0) and (1, 0)
The y-intercept of
y = 2x^2-3x+5
What is (0, 5)
The vertex
What is (-1, -9)
This parabola opens up or down
f(x) = -2x^2-3x+7
What is down
The vertex of
y = -2(x + 4)^2-6
What is
(-4, -6)
The x-intercepts of
f(x) = 1/2(x + 3)(x - 5)
What are
(-3, 0) and (5, 0)
The y-intercept of
y = 2x^2+7x
What is (0, 0)
The axis of symmetry
The equation in vertex form with vertex (1, 9) and a =3
What is
y=3(x-1)^2+9
The axis of symmetry of
y = (x - 7)^2- 1
What is x = 7
The axis of symmetry of
y = 2(x - 4)(x - 6)
What is x = 5
The axis of symmetry of
y = 2x^2+8x-4
The x- and y-intercepts
What are (-4, 0) and (2, 0) and (0, -8)
The equation in intercept form with x-intercepts (5, 0) and (-4, 0) and a = -2
What is
y = -2(x-5)(x+4)
The axis of symmetry of
f(x) = -2(x+3)^2-9
What is x = -3
The axis of symmetry of
f(x) = 2(x - 1)( x+7)
What is x = -3
The axis of symmetry of
f(x) = -x^2+6x - 3
What is x = 3
The range
What is y > -9
The equation of a parabola passing through (1,0) and (3,0) and (4, 6)
What is
y=2(x-1)(x-3)
After finding the vertex, Marty plugged in x = 2. The point that she graphs next...
y = -(x - 1)^2 + 5
What is (2, 3)
The vertex of
y = -2(x + 2)(x - 4)
What is (1, 18)
The vertex of
y = x^2 + 2x - 8
What is (-1, -9)
What is a minimum at y = -9
The equation of a parabola with vertex (4,1) passing through (2, -3)
What is
y=-(x-4)^2+1