Section 1: Graphing and Solving Quadratics

Roots of a Quadratic

100

What is the solution or solutions to this quadratic function?

X= 0  

200

What is the solution or solutions to this quadratic function?

No real solutions

300

What is the solution or solutions to this function?

x=2 and x=4

400

This is the graph of:

x^2-6x+9

What are the solutions of: 

-x^2+6x-9

x=3

500

If x=2 is one solution to this function, what would the other solution be?

x=-2

Solving Quadratics (factoring)

100

Solve: 

X^2+2X-8

X=2 or X = -4

200

x^2+2x+8

x=-2 and x=4

300

Solve: 

x^2-x-6

x=3 and x=-2

400

Solve: 

x^2-4

x=-2 and x=2

500

Solve: 

x^2+4x-32

x=4 and x=-8

Solving Quadratics (Quadratic Formula)

100

x^2+x-2=0

x=1  x= -2

200

x^2-25=0

x=5   x=-5

300

4x^2+7x-11

x=1  x=2.75

400

5x^2-7x+11

No solution

500

2x^2-8x+8=0

x=2

Solving Quadratics(Square Roots)

100

x^2+1=2

x= 1 and -1

200

7x^2-1=699

x= 10 and -10

300

x^2-8=-8

x=0

400

x^2-7=75

x=9.055 and -9.055

500

7x^2-8=-128

No Solution

Have you been paying attention?

100

What tools can you use to find factors of numbers?

Factor table

200

What buttons do you press to get the 

sqrt

2nd,  x^2 

300

What does the calculator say when you have a negative number under the square root?

Domain Error

400

What 2 places can you find the learning targets we are working on?

Board and packet

500

The difference between Mrs. Densmore's age and Miss Brown's age is 23 years.  If Miss Brown is 1/2 as old as Mrs. Densmore, How old are your teachers?

Miss Brown is 23 and Mrs. Densmore is 46