Harper's Math Challenge 8th

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

The points on the coordinate plane

What are coordinate points? Ex: (x, y)

300

What signs does Quadrant IV have?

(+, -)

400

An x and y axis divided into 4 quadrants.

What is the coordinate plane?

500

 A graph used to show 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

Advanced Math

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

What are our school colors?

Green and Gold

200

What is the last day of school?

May 22nd

300

How long has Mrs. Harper been at Shafer?

8 yrs

400

What is our school mascot?

Green Wave

500

What are the three things that you should bring to class everyday?

Pencil, IPAD, Agenda