Solving by factoring
Quadratic formula
Graphing
Random
100
To factor, the equation must be set equal to...?
ZERO
100
What is the quadratic formula?
100
What is the equation to find the axis of symmetry?
x=-b/2a
100
What is the y-intercept of this equation: y=x2+7x-4
The y-intercept is -4
200
Solve: (x+4)(x-2)
x=-4,2
200
Solve x2 + 4x - 21 = 0 using quadratic formula.
x = 3, -7
200
How many points do you need to create your graph?
minimum 3 points
200
Name all the ways we have learned to solve quadratic equations
Factoring, graphing, and quadratic formula
300
Solve this quadratics by factoring.
x2 + 2x - 3 = 0
x2 + 2x - 3 = 0
= (x-1)(x+3) = 0
x = 1, -3
300
Solve 2x2 +2x - 12 = 0 using the quadratic formula.
x=2, -3
300
What does it mean if the graph crosses the x-axis twice?
It means there are 2 solutions.
300
To solve a quadratic equation it must be in what form
standard form, ax2+2bx+c=0
400
Solve this quadratic equation by factoring.
X2 + 16 = 10x
x2 - 10x + 16 =0
(x-2)(x-8)
x = 2, 8
400
Solve x2 -x - 72 = 0 by using quadratic formula.
x=9, -8
400
What is the vertex of y=x2+4x-1
(-2,-5)
400
What is the shape of the graph of a quadratic?
Parabola
500
Solve this quadratis equation by factoring.
x^2+7x+15=5
(x+2)(x+5)=0
x= -2, -5
500
Solve 2x2-6x+4=0
x=2,1
500
Solve for the vertex, y-intercept, and the reflection of the y-intercept: y=x2-2x+4
vertex: (1,3)
y-intercept: (0,4)
reflection of y-intercept: (2,4)
500
Which of the three methods learned today is better to solve y=2x2+5x+3
Quadratic fomrula