Math Challenge

8th Grade Mental Math

100

17 * 3

51

200

26+98

124

300

2(3+5)

16

400

8(4-9)+12

-28

500

(7-4)²+(8-2)

15

8th Grade Graphing

100

There are _______ quadrants on a coordinate plane

4

200

Quadrant that has the points (-,+)

QII

300

Rotation 270 degrees clockwise from QIII would end in which quadrant

QIV

400

An x and y axis divided into 4 quadrants.

What is the coordinate plane?

500

 A graph used to show constant change over a period of time.

What is a line graph?

8th Grade Math

100

Rise over run

What is slope?

200

The steeper the line the steeper the ________.

Slope

300

If a line is decreasing then it's slope is __________

Negative

400

Equation for slope

What is m= y₂-y₁ / x₂-x₁

500

Equation for a line

y= mx+b

Linear functions

100

Slope of y=2x-4

What is m=2

200

y-intercept of y=3x-8

What is -8

300

Slope of -3/4x + 6

What is m=-3/4

400

Slope of y=-2

What is m=0

500

The slope of x=5

What is m=undefined

Trivia

100

How many superbowl games did the New York Giants win?

32

200

How many players are on the football team?

24

300

If a football match lasts 90 minutes and is divided into two halves, how long does each last?

45 minutes

400

If a football field is 100 yards long and a player runs from one end to the other, how far did the player run?

100 yards

500

In a penalty shootout, a team scores 4 goals out of 5 attempts. What is their scoring percentage?

80%