Fun with Math

Mental Math

100

17 * 3

51

200

26+98

124

300

2(3+5)

16

400

8(4-9)+12

-28

500

(7-4)+(8-2)

9

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

What signs do the coordinates in Quadrant IV have?

(+, -)

400

What is the point slope formula? 

y_{2 -} y₁ Divided by x₂ - x₁

500

What is the formula for slope-intercept form? 

y = mx + b

Mixed

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

How can you tell if a slope is positive or negative just by looking at the graph? 

Line going up and to the right is positive, line going down and to the right is negative. 

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 Graph

100

Point A(4, 2) is reflected over the y axis. What is the coordinate of the image? 

A'(-4, 2)

200

Point D(1, 3) is rotated 180 degrees around (0, 0). What is the coordinate of the image? 

D'(-1, -3)

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.