7th & 8th Grade Pi Day Jeopardy

Algebra 1

100

9x=27

x=3

200

3x=51

x=17

300

3x+4=16

x=4

400

x²+4=13

x=3

500

x³+3x=14

x=2

Slope

100

What is the Slope?

y=3x+5

3

200

What is the Slope?

2y=8x-5

4

300

What is the Slope?

(-4,-3) (-6,-7)

2

400

What is the Slope?

(3/4, 1/4)  (7/4, 3/4)

1/2

500

What is the Slope?

(-28/7, -4/7) (-14/7, -8/7)

2/7

Parallel, & Perpendicular Lines

100

What is the Equation of a parallel line with a y-intercept of 5?

y=2x-3

y=2x+5

200

What is the equation of a perpendicular line with a y-intercept of -9?

y=-2x+4

y=1/2x-9

300

Parallel, Perpendicular, Neither?

y=2x+6

2y=-x-5

Perpendicular

400

What is the Equation of line parallel with a y-intercept of -43?

3y=57x+72

y=19x-43

500

What is the equation of a line perpendicular with a y-intercept of -23?

7y=84x+98

y=-1/12x-23

Point Slope Form

100

What is point slope form?

y-y1=m(x-x1)

200

Write in point slope form?

m=5

(4,5)

y-5=5(x-4)

300

Write in Point Slope Form:

m=7

(-6,-12)

y+12=7(x+6)

400

Write in Point Slope Form:

(2,3)  (5,6)

y-3=x-2 or y-6=x-5

500

Write in Point Slope Form:

y-intercept=4

x-intercept=-7

y-4=-4/7x or y=-4/7(x+7)

Standard Form

100

What is standard form?

ax+by=c

200

Write in Standard Form:

y=-x+8

x+y=8

300

Write in Standard Form:

y=1/2x+6

-x+2y=12

400

Write in Standard Form:

m=6

y-intercept=-9

-6x+y=-9

500

Write in Standard Form:

(-6,5) (2,9)

-2x+y=5