GRADE 8 MATH JEOPARDY!

POLYNOMIALS

100

Find the sum:

(2x³ - 5x² + x) + ( 2x² +x³ -1)

3x³ - 3x² + x - 1 

200

Find the product:

(x + 1)(x² + 5x + 8)

x³ + 6x² + 13x  + 8

300

Find the product:

( 5x - 2y)²

25x² - 20xy + 4y²

400

Find the product:

(-12 -n)²

n² + 24n + 144

500

Solve the equation:

(x + 1)(x - 3)(x - 2) = 0

x = -1   or   x = 3    or x = 2

LINEAR FUNCTIONS

100

Evaluate f(x)=3x - 9 when x=2

When x=2,  f(x)=-3

200

Identify intercepts of the line: y=-2x + 3

(1.5, 0), (0,3)

300

Find the slope and y-intercept of the line: (0,-3), (4,3)

m=1.5

y-intercept = -3

400

Write an equation of the line that passes through (0, -2) and (4, 10)

y= 3x - 2

500

For x= y/2.5, when x =10, what is the ordered pair?

(10, 25)

SYSTEM OF EQUATIONS

100

Solve the system of linear equations: 

x + y = -2

-3x +y = 6

(-2, 0)

200

Solve the system of linear equations:

11x -7y = -14

x - 2y = -4

(0,2)

300

Write 12,000,000 in scientific notation

1.2 x 10 to the seventh power

400

The population of Taiwan is 2.211325 x 10 to the seventh power. Write this in standard notation.

22,113,250

500

Solve the system of equations:

-15x -6y = -705,000

2x +3y = 160,000

x= 35,000

y = 30,000

SLOPE

100

Find the slope of the line: y=2x +4

2 or 2/1

200

Find the slope of the line: 2x + y =2

-2 or -2/1

300

Find the slope of the line: -3y + x = -6

1/3

400

Find the slope of the line through the given points:

(6,1), (4,3)

-1 or -1/1

500

Find the slope of the line through the given points:

(-8, -8), (-2, -6)

1/3

POTPOURRI

100

Factor the polynomial:

x² - 4w + 3

(w - 1)(w - 3)

200

What is the solution of the equation:

-4(n+5) = -32

n=3

300

A 12 oz container of soda has 180 calories. How many calories are in one ounce of the soda?

15

400

Factor the monomial:

64m³

2 x 2 x 2 x 2 x 2 x2 x m x m x m

or 2⁶ x m x m x m

500

Factor the polynomial:

8x² - 56x + 48

8(x - 1)(x - 6)