8th Grade Math Review

8th Grade Math 1

100

What is slope intercept formula?

y=mx+b

200

y=mx+b, what part of the formula is the slope?

m

300

What is another name for slope?

Rate of change, unit rate, m, constant of proportionality

400

What is another name for the y-intercept?

Starting point, fee

500

What is the y-intercept of the line?

2 

8th Grade Math 2

100

What is 1,0000⁰

1

200

4^-3 simplified

1/64

300

Write 5.76 x 10⁴  in standard form

57,600

400

On a graph, how can you determine if graph is proportional?

the line goes thru the origin

500

A triangle is a right triangle if...

the sum of both legs squared is equal to the hypotenuse squared

8th Grade Math 3

100

How can you determine if a table is proportional?

divide the "y" value by the "x" value

200

True or false: a graph is proportional if the graph is positive

true

300

The opposite of squaring a number is taking the...

Square root

400

An irrational number is a number that...

never ends (terminates) AND never repeats

500

What is the radius of a sphere that can hold 343pi cubed centimeters of water?

6.36 cm

8th Grade Math 4

100

x²=81

x=9

200

What is the square root of 49?

7

300

To determine if something is a function do we have to see if the x values or y values repeat?

x values

400

How can you determine that a table is proportional if the table does not have (0,0)?

See if the change in y and change of x is the same

500

This relationship is...

x   | y

9   | 3

12 | 4

15 | 5

30 |10 

proportional

8th Grade Math 5

100

All the angles in a triangle should add up to what degrees?

180 degrees

200

How can we express slope as a relationship?

y per x

300

What is the value of x when you have a hypotenuse of 19.7, and a side length of 18.

8

400

Translation moves a shape in these directions

Up, Down, Left, and Right

500

What is the length of the hypotenuse when the legs are 3 and 4

a²+ b² = c²

3² + 4² = c²

9 + 16 =25

c = 5

8th Grade Math 6

100

What are the 4 types of transformations?

Translations (slide), Reflections (flip), Rotations (turn), and Dilations (grow/shrink)

200

What is the slope of y=7x+12

7

300

Simplify:2³ 

8

400

What transformation does not preserve it's congruence?

dilation

500

If you have the point (5,4) and it is rotated 90^o counterclockwise, what will the new point be located?

(-4,5)