8th Grade Math Jeopardy

Solve Systems By Graphing

100

What is the solution of y = 3x - 6 & y = 4x - 4?

What is -2, and -12

200

Is the point (4, 2) a solution for the equation 

y = -2x + 6

What is NO

300

How many solutions does the system graphed show have?

What is infinitely many solutions

400

Lucy reads 450 words in 3 minutes. This is an equation that can be used to find w, the number of words Lucy can read in 20 minutes if she continues to read at the same rate?

What is w = (450/3)*20

500

A hydrogen molecule is 1.5x10¯¹º meters in length. This is that number in standard notation?

What is 0.00000000015

Solving Linear Inequalities

100

Identify the y-intercept for the function:
y=-3x

What is 0

200

How can I tell if an inequality will have a solid line?

What is it has an equal sign

300

Which point below is NOT part of the solution set?

(-10, 20), (0, -2), (0, 0), (3, 5)

What is (0, -2)

400

This is an equation that matches the following statement. Six less than four times a number is two more than three times that number.

What is 4n - 6 = 3n + 2

500

This is the 7th term of the following sequence? -4,-6,-8,.....-2n-2,...........

What is -16

Solving Systems With Elimination

100

What is another name for the method of Elimination?

What is the Method of Addition?

200

Given the system y = x + 2 and -y = 4x + 3 which variable will be eliminated when the equations are added together?

What is y?

300

Given the system 2x + 3y = -1 and 4x – 2y = 6 

what number do we need to multiply the first equation by in order to eliminate the x?

What is -2?

400

Given the system  4x + 3y = 4 and 8x = -6y + 2 what is the result of eliminating the x?

What is 0 ≠ -6?

500

In the elimination process what is the reason for adding the two equations together?

What is to eliminate one of the variable?

Solving With Substitution

100

Which of the follow is it easiest to solve for y and what is y equal to?

Equation 1 2y = 6x + 2

Equation 2 2x – 3 = y + 1

What is equation 1 and y = 3x + 1?

200

Given the system

Equation 1 y = -x + 2 and

Equation 2 x + y = 3

Substituting -x + 2 into equation 2 for y tells us what about the system?

What is the system is INCONSTIENT?

300

Solving the given system r2x – 3y = 6 and -4x + 6y = -18 results in the following situation -12 ≠ -18.  What can we say about the system?

What is This equation cannot be true! we have an inconsistent system, which has no solutions?

400

If triangle ABC has a base of 20 ft and area of 400 square feet, and if triangle DEF is similar and has a base of 10 ft, this would be the area of triangle DEF?

What is 100 ft² ?

500

The floor of a room measures 12 feet by 10 feet. The room has 9-foot cailings. The walls of the room are to be painted. This is the area to be painted.

What is 396 ft² ?