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

2(7-4)+(8-2)

12

8th Grade Graphing

100

There are _______ quadrants on a coordinate plane

4

200

What is the x value of the y-intercepts coordinates? 

0. (0, y)

300

Graph the system of equations and write the solution:

y= 2x+3

y= x + 2

(-1,1)

400

What is the formula for finding slope?

y_{2 -} y₁ Divided by x₂ - x₁

500

What is the formula for slope-intercept form? 

y = mx + b

8th Grade Math

100

What is slope? 

The rate of change. 

200

Conner eats 12 hotdogs in 6 mins. Brenda eats 8 hotdogs in 3 minutes. 

If graphed, which person would have the steeper slope? 

Brenda's slope would be steeper. 

300

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

Negative

400

Mrs. Knoll had 30 loaves of bread and sold 3 loaves per hour. Write an equation to represent this.

y = -3x +30

500

When Timmy was first born, he weighed 8.5 pounds. Every month he gained 1.5 pounds. Write an equation in slope intercept form that represents this situation. 

y = 1.5x + 8.5

Advanced Math

100

Is this a function? 

(4,8) (3,6) (2,5) (4,8)

NO

200

Move the equation into slope-intercept form.

2x + y =5

y = -2x +5

300

y = 1/2x + 4: What is the slope?

1/2

400

y = x - 3: What is the y-intercept? 

-3

500

What would the line x=5 look like? 

A vertical line at 5 on the x axis. 

Trivia

100

What was Mr. Parry's high school mascot?

Cardinals

200

What room number is this?

83

300

What high school did Mr. Gauer graduate from?

Faulkton Trojans

400

Which of the following attended basic training?

Mr. Cantine

Mrs. B

Mr. Gauer

Mrs. Knoll

Mrs. B

500

Name all 9 of Santa's reindeer.

Dasher, Dancer, Prancer, Vixen, Comet, Cupid, Donner, Blitzen, and Rudolph