Quadratic Formula
Solve using the quadratic formula:
x^2 + + 16x + 64 = 0
(-8,0)
Solve by completing the square:
x^2 + 11x + 28 = 0
(-4,0) (-7,0)
Convert to standard form:
y = -2(x - 4)^2 + 6
y = -2x^2 + 16 - 26
What is the vertex of
y = x^2 + 2x - 35
(-1,-36)
in the equation y = 25x^2 - 16, what is the value of b?
0
Solve using the quadratic formula:
x^2 - 5x = 0
(0,0) (5,0)
Solve by completing the square:
x^2 + 6x + 8 =0
(-4,0) (-2,0)
Convert to vertex form:
y = x^2 + 2x - 35
y = (x + 1)^2 - 36
What is the vertex:
y = 2(x - 3)^2 - 5
(3,-5)
Factor 16x^2 - 25
(4x - 5)(4x + 5)
Solve using the quadratic formula:
x^2 + 4x + 4 = 0
(-2, 0)
Solve by completing the square:
2x^2 + 22x + 60 = 0
(-5,0) (-6,0)
Convert to vertex form:
y = x^2 + 6x - 16
y = (x + 3)^2 -25
Find the vertex:
y = 9x^2 - 16
(0, -16)
What type of trinomial is
x^2 + 4x + 4
perfect square trinomial
Solve using the quadratic formula:
x^2 + 4x = -3
(-1,0) (-3,0)
Solve by completing the square:
x^2 + 11x + 10 = 0
(-1,0) (-10,0)
Convert to vertex form:
y = x^2 + 4x - 12
y = (x + 2)^2 - 16
Find the vertex:
y = 4x^2 + 2x
(-1/4, -1/4)
What is the value of a in the equation
y = -2(x - 3)^2 + 4
-2
Solve using the quadratic formula:
2x^2 -7m -6 = -9
7 + square root of 73/4 7 - square root of 73/4
Solve by completing the square:
x^2 - 3x + 28 = 0
(-4,0) (7,0)
Convert to vertex form:
y = x^2 - 8x - 9
y = (x - 4)^2 -25
Find a if a point on the graph is (1,2) and the vertex is (0,0).
1
In what direction does the parabola for the equation
y = .24(x - 3)^2 -3
open?