Math Challenge

8th Grade Mental Math

100

17 * 3

51

200

26+98

124

300

4(18-13)

20

400

8(3-1)+12

28

500

4³ + 3

67

8th Grade Graphing 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