Week 1 Jeopardy!

PEMDAS

100

(5+12)-3=?

14

200

(16-8)²-32=?

32

300

(19-7)/4+3x20=?

63

400

54/6+2(8-3x4)=?

1

500

(2³x7-3)+8²/4-20=?

49

Solving Equations

100

Solve the equation. 3x-2=16

x=6

200

Solve the equation: |9x-2|=7

x=1 or x=-5/9

300

Solve the equation: -5/2(w-1)=15

w=-5

400

Solve the equation: 15=4.3n-2.1(n-4)

n=3

500

Solve the equation: 4z-15=4z+11

no solution

Inequalities

100

Solve the inequality: 3x≤8+x

x≤4

200

Solve the inequality: -3x+7<-8

x>5

300

Solve the inequality: |x+3|<8.

-5<x<11

400

Solve the inequality: |4x-7|<9

-1/2<x<4

500

Solve the inequality: |2-3x|≥2/3

x≤4/9 or x≥8/9

Linear Equations

100

Write an equation of a line that has a slope of 5 and a y intercept of -8. 

y=5x-8

200

Write an equation of the line that passes through the given points. (-10,7), (5,-3)

y=-(2/3)x+1/3

300

Write an equation in point-slope form of the line that passes through (6,-4) and has a slope of 2/3.

y+4=2/3(x-6)

400

Write an equation of the line that passes though (-6,1) and is parallel to the line 4x+y=7.

y=-4x-23

500

Write an equation of the line that passes though the point (-4,-8) and is perpendicular to the line 8x+3y=7.

y=3/8x-13/2

Substitution/Elimination

100

Solve the system of equations using substitution:

6x−5y=15

x=y+3

(0,-3)

200

Solve the system of equations using elimination:

−2x+15y=−24

2x+9y=24

(12,0)

300

Solve the system of equations using substitution.

15x+31y=−3

x=−y+3

(6,-3)

400

Solve the system of equations.

−7y−4x=1

7y−2x=53

(-9,5)

500

Solve the system of equations.

8x + y = −16

−3x + y = −5

(−1, −8)