GRADE 8 MATH JEOPARDY!

Exponents

100

Write in exponential form & Positive exponent.

Simplify: 4⁵ x 4⁸ =

4¹³

200

Write in exponential form & a Positive exponent:

Simplify: -8⁷ x -8^-9 x -8¹⁰ = 

-8⁸

300

Write the answer in exponential form & it must be positive exponent:

Simplify: n⁵ / n⁸ = 

1/n³ or 1 over n to the third power

400

Write the answer in exponential form and it must be a positive exponent

(y⁷ x y^-2)⁰ x (y^-3 / y^-9)

y⁶

500

Write in exponential form and it must be a positive exponent.

Simplify: (3¹² x 3^-4) / (3⁹ x 3²⁰) = 

1 / 3³ or 1 over 3 to the third power

Slope & Y-intercept

100

What is the slope of the following equation?

y = (3/4)x + 5

3/4

200

What is the y-intercept of the following equation:

y = 3x - 10

-10

300

Jenny got a new cell phone plan. She needs to pay a $25 service fee and $0.10 per text she sends. Let y equal the total cost each month and x is the number of text messages. What is the rate of change for Jenny's new cell phone plan?

$0.10 per text or 0.10

400

Mike opened a savings account. When he opened the account he started with $100. Each month he deposited $75 into the account. If y is the total cost and x is the number of months deposited, Write an equation to represent Mike's monthly saving total. 

y = 75x + 100

500

Lauren was mountain climbing and needs to get back to her car. She is currently at an elevation of 200 miles above sea level. She started descending at a constant rate of 5 miles per hour. Write an equation to represent the total distance Lauren has left to reach her car. 

y = 200 - 5x or y = -5x + 200

SCIENTIFIC NOTATION

100

Write 610,000,000,000 in scientific notation

6.1 x 10¹¹

200

Write 0.00852 in scientific notation

8.52 x 10^-3

300

Write 10,002,000,000 in scientific notation

1.0002 x 10¹⁰

400

Simplify:

(2.4 x 10⁴)(4.5 x 10³) =

1.08 x 10⁸

500

Jimmy moved from a city to a small town. The population of the city is 6 x 10⁵, which is 15 times as great as the small town. What expression represents the population of the small town?  

4 x 10⁴

Multi-Step Equations

100

Solve for x:

3(x + 5) = 45

x = 10

200

Solve for x:

2x + 5 - 6x = 33

x = -7

300

Solve for x:

0.5x + 10 + 0.25x - 6 = -1.25x - 4

x = -4

400

How many solutions does the equation have:

2(3x + 9) = 6(x + 2) + 6

Infinite Solution

500

Solve for d & How many solutions does it have?

0.2(d - 6) = 0.3d + 5 - 3 + 0.1d 

d = -16

One Solution

Math Vocabulary

100

What is another name for the rate of change in a linear equation?

Slope

200

What are the three rigid transformations? 

Translation, Reflection, Rotation

300

A relationship where each input has exactly one output

Function

400

A piece of data that doesn't seem to fit with the rest of the data set

Outlier

500

A pair of numbers that gives the coordinates of a point on a grid

Ordered Pair