MEGA Review

Inequalities

100

the less than sign 

<

200

<  > Are these signs closed or open? 

closed 

300

graph x>3 

<-------------O------------>

                    3

400

graph x< -4

<-------------.------------->

                    -4

500

solve the inequality 

2x-7>7

x>7

Ordering, mean median & mode, & Probability

100

order these numbers from least to greatest 

0, 1, -1, -0.01, 0.01, -0.004, 0.002 

-1,-0.01, -0.004, 0, 0.002, 0.01, 1 

200

what is the mode(most) of these numbers 

1, 3, 7, 12, 3, 6, 3

3

300

what is the median(middle) of these numbers 

1, 3, 7, 12, 3, 6, 3

hint: Put them in order

1,3,3,3,6,7,12

3

400

A dice has six sides numbered 1-6 

what is the probability(chance) of rolling a 2 or a 6 

2/6 or 1/3

500

what is the mean of these numbers 

1, 3, 7, 12, 3, 6, 3

hint: add them and then divide 

5

Geometry

100

what is the are of a rectangle with a length of 3ft and a width of 7ft? 

don't forget the units 

21ft²

200

find the surface area of a rectangle where 

L=3, W=4, H=5 

SA= 2LW+2WH+2HL

 

 94

300

If the diameter of a circle is 12 meters, what is the radius? 

6 meters

400

Circumference is.....

Pi * Diameter

500

Find the are of a circle, given that the diameter is 6 ft 

hint: A=3.14 r² 

28.26 ft²

1&2 step equations

100

solve for x 

x+2 = 6 

x = 4 

200

2x= 6

x=3 

300

x - 6 = -12 

x = -6

400

2x-3=3

x=3 

500

(x/4) - 3 =1

16

Proportionality

100

A graph is proportional if it ...

Is a straight line 

& 

it passes through the origin (the middle)

200

k = 

y divided by x 

300

is this table proportional?

 if yes, what is the k value (the constant of proportionality)

     x   |    y   

     2   |   8    

     4_ |   16  

__8__|    32  

YES 

k=4 

400

what is the equation for INVERSE proportionality? 

k=

y*x

500

What is the equation for y 

y=

k*x