Show:
By Factoring
By Taking Square Root
Find the Vertex
Find Zeros
More on Parabolas
100

Solve by FACTORING:

x2 - 12x +36

x = 6

100

Solve 

x2 + 4 = 40

x = +6 and -6

100

Find the Vertex:

y = -4 (x + 2)2 - 1

(-2, -1)

100

Find the zeros:

y = (x + 7)(x - 6)

x = -7 and x = 6

100

Is this Parabola DOWNWARD or UPWARD?

y = -3(x - 7)(x + 2)

Downward

200

Solve by FACTORING:

x2 + 3x - 10 = 0

x = - 5 and x = 2

200

Solve

-3x2 = 12

NO SOLUTION!!!

200

Find the Vertex:

f(x) = 1/2 (x - 7) - 2

(7, -2)

200

Find the zeros:

f(x) = 2(x - 3)(x + 8)

x = 3 and x = -8

200

The line that divides the parabola in two equal halves and intersects the vertex is called...

Axis of Symmetry

300

Solve by FACTORING: 

2x2 - 24x + 54 = 0

x = 3 and x = 9

300

Solve

(x + 3)2 - 4 = 0

x = -5 and x = -1

300

Find the Vertex:

y = (x + 2)(x - 4)

(1, -9)

300

Find the zeros:

y = 2(x - 1)2 - 8

x = -1 and x = 3

300

Two other ways to call an x-intercepts are...

Roots and Zeros!!!

400

Solve by FACTORING:

3x2 -33x = - 54

x = 2 and x = 9

400

Solve

(x - 10)2 - 1 = 0

x = 9 and x = 11

400

Find the Vertex:

f(x) = 2(x - 5)(x + 1)

(2, -18)

400

Find the zeros:

g(x) = -3(x - 2)2 + 48

x = -2 and x = 6

400

Solve by using THE QUADRATIC FORMULA:

2x2 - 4x - 30 = 0

x = 5 and x = - 3

500

Solve by FACTORING:

4x2 +72x +320 = 0

x = -10 and x = -8

500

What is the FORMULA for VERTEX FORM???

y = a (x - h)2 + k

500

Find the Vertex:

y = 1/2 (x - 2)(x + 2)

(0, -2)

500

Find the zeros:

y = 7(x + 5)2 + 0

x = -5

500

Write the QUADRATIC FORMULA:

x = -b +- sqrt (b2 - 4ac) / 2a