Complete the Square
Solving Quadratic Equations
Unit 9
Solve each using the Quadratic Formula
Formulas
100
x2 + 8x + __
16.
100
(x - 5) (x + 7)
x = 5
x = -7
100
Solve 2x2 + 7x - 4 = 0
X = -8
X = 1
100
9x2 - 14 = -2x
X = 1.1411
X = -1.363
100
What is slope intercept form?
The point slope form is y=mx+b
200
y2 - 6x + __
9.
200
x2 + 4x - 32 = 0
X = -8
x = 4
200
How many solutions does 4x2 + 4x + 1 = 4x + 1 have??
One solution.
200
4r2 - 1 = 0
X = 0.5
X = -0.5
200
What is the form for a quadratic equation
300
a2 + 40x + __
400.
300
x2 + 10x - 21 = 3
The solutions are x = -12
x = 2
300
Solve the system of equations:
y = x
y = x2 - 3x
(0 , 0)
(4, 4)
300
4a2 - 64 = 0
X = 4
X = -4
300
What is the Quadratic Formula???
The Formula is,
400
b2 -14b + __
49
400
x2 + 5x + 6 = 0
X = -3
X = -2
400
x2 - 5x = 84
X = 12
X = -7
400
12x2 = 18
X plus or minus 1.225
400
What is standard form??
Ax + By = C
500
x2 + x + __
1/4.
500
x2 - 16 = 0
Factors into X = plus or minus 4.
500
(x + 7)2 = 49
X = -14
X = 0
500
4v2 = -7v + 15
X = 1.25, -3
500
What is the form to find the X-Coordinate
