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 the slope of a line?

Rise over Run or change in y over the change in x.

400

What is the y-intercept of the line?

2 

500

What is the equation for this line?

y=3x-1

8th Grade Math 2

100

a⁷⋅a⁻⁷

1

200

Write the number below in standard notation

.000452

4.52 x 10^-4

300

Write 5.76 x 10⁴  in standard form

57,600

400

What is the slope of  2y=7x+12

7/2

500

Choose the correct statement:
3x − 7x + 1 = −4x + 5

The system has an infinite number of solutions.

The system has no solutions.

The system has a unique solution.

The system has two possible solutions.

Problem 6

The system has no solutions.

8th Grade Math 3

100

(−7) + (−6) =

−13

200

x²=81

+/- 9

300

What two whole numbers is √56 in between and what number is it closer to?

In between 7 and 8. Closer to 7.

400

3x+1=13

x=4

500

An airplane is at 39,000 feet above the ground and begins to descend at a rate of 1,800 feet per minute. Write an equation that represents this.

y=-1800x+39000

8th Grade Math 4

100

-5+7

2

200

Simplify:

-5x+2x-y

-3x-y

300

Is the square root of 7 a rational number?

No

400

The front of a hiking tent is shaped like a triangle. The slanted sides are both 5 feet long and the bottom of the tent is 6 feet across. What is the height of the tent in feet at the tallest point?

4

500

Find the volume of a sphere with a 9 foot diameter. Round to the nearest tenth.

381.7 ft³

8th Grade Math 5

100

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

180 degrees

200

What is a rational number?

a number that can be turned into a fraction - but as a decimal, it is either a terminating or repeating decimal.

300

Angle Pairs

1. Find the measure of angle JGH.  Explain or show your reasoning.

   

How many degrees is angle G?

150

400

What is happening from 5 to 15 seconds?
A. Standing Still
B. Constant Speed moving Forward
C. Constant Speed moving Backward
D. Going in a straight line

Standing Still

500

What type of association is shown below?

Negative

8th Grade Math 6

100

(-11) * (-3)

33

200

What is the slope of y=7x+12

7

300

Simplify:

x³ times x⁵ 

x^8

400

What is the angle measure of a straight line?

180 degrees

500

(3.4 x 10⁴) x (3.25 x 10⁶)

1.105 x 10¹¹