8th Grade Math Jeopardy

Linear

100

What is the slope of the line y = 3x + 2?

3x

200

Is y = 2x - 4 a linear function? Why or why not?

It is because it has a slope that is not squared.

300

What is the y-intercept of y = -2x + 7?

It is 7.

400

Graph y = -x + 4. What is the slope and y-intercept?

Slope: -1

Y-Intercept: 4

500

If y = 2x + 1 and y = -x + 4, what is the solution to the system?

(1,3)

Quadratic

100

What is x in x² = 16?

x=4

200

Solve x² - 9 = 0

x=3

300

Factor x² + 5x + 6

(x+3)(x+2)

400

Solve x² + 4x - 5 = 0

x=1

x=-5

500

Solve using the quadratic formula: x² - 2x - 3 = 0

x=3

x=-1

Finding X

100

3x+7=22

x=5

200

5x−4=26

x=6

300

2(x+5)=18

x=4

400

2(x+3)−5=3(x−2)+4

x=3

500

4(2x−5)+3=3(x+2)+11

x=6.8

Square Root

100

√25 = ?

5

200

√49 + √36 = ?

13

300

What is the square root of 0.25?

.5

400

True or False: √81 = ±9

True

500

Simplify √50

5√2

Volume

100

What is the volume of a cube with side length 3 cm?

27

200

Volume of a rectangular prism: L=4, W=3, H=2

24

300

Find the volume of a cylinder with r = 2, h = 5 (Use 3.14 for π)

62.8

400

Volume of a cone: r = 3, h = 6 (Use 3.14 for π)

56.55

500

Sphere volume: radius = 4 (Use V = ⁴⁄₃πr³, π = 3.14)

268.08