Laela C Final Review

Mean, Median, Mode

100

What is the median of: 5, 6, 6, 7, 12, 13, 17, 19

9.5

200

What is the median of: 77, 99, 112, 85, 117, 68, 63

85

300

Find mode

5, 6, 2, 7, 7, 9, 5, 7, 1

7

400

Find the mean

58, 27, 42, 14, 39

36

500

Find the mean

267, 25, 85, 965, 24

273.2

Factoring Quadratics

100

x² + 9x + 18

(x+3) (x+6)

200

x² + 5x - 14

(x+70) (x-2) -^14/14

                            5

300

x² +5 x + 6

(x+2) (x+3) 6/16

                          23

400

m² - 7m - 60

(m + 5) ( m - 12)

500

3x³ - 24x² - 60x 

20/

      ​1    20
     2    10​​​

Two step equation

100

2y - 10 = 22

16

200

2g - 3 = 35

19

300

1 + 3z = 40

13

400

7h + 2 = 65

9

500

2v - 7 = 29

18

Histograms

100

How many people are 20 years old?

2

200

How many people are 60?

3

300

How many people are 40?

4

400

How many people are 100?

1

500

How many people are 70?

1

Exponential Equations

100

5³ - ^2x = 5^-x

3-2x = --x

+2x = +2x

3=1x

[x=3]

200

3^2a = 3^-a

2^a - a

+a  +a

3a = 0

3/3

[a=0]

300

4^2p = 4^-2p -1

2p - 2p - 1

+2p - 2p

4p = -1

-4     4

400

(1/2)^x = (1/2)^4x-12

1x = 4x-12

-4x   -4x

-3x   -12

[x=4]

500

2⁷x -⁶ = 2^5x  + 2

7x-6 =5x+2

     -2     -2

7x-8 = 5x

-7x - 8 = -2x

-2   -2

[4=x]