Jeopardy review

Simplifying

100

x-2x=?

-x

200

2x-5x+8=?

-3x+8

300

-3 (x+5+3x)=?

-12x-15

400

-4x⁴+2x²+6x²-x⁴=?

-5x⁴+8x²

500

x (-2x+4) +4x²+5=?

2x²+4x+5

Arithmetics

100

evaluate -10+3=

without the calculator

-7

200

1/4 + 1/4=

1/2

300

5/6 - 1/4 =

7/12

400

16x⁴/4x²

4x²

500

(3x³ * 2x²)/x²

6x³

Solving inequalities

100

would we use a dashed or solid line to graph y ≤ x? 

Solid

200

would we shade above or below the line for the linear inequality y>x+2?

above

300

Graph the linear inequality for y<2x-3

.................................................................

400

is the point (0,3) a solution to the inequality y<-x-3?

no, the point would not be in the shaded region

500

Find a solution for the inequality 3x+2y>6

answers may very

Systems of equations

100

solve the system y=x & y=2x+4

(-4,-4)

200

How many solutions do we have in this system     y=6x-4 & 2y=12x+6

0 because same slope and different y-intercepts causes lines to be parallel 

300

Solve the system using substitution -3x-4y=-2 & y=2x-5

(2,-1)

400

solve the system of equations with elimination: x-4y=-18 & -x+3y=11

(10,7)

500

solve the system of equations with elimination:       3x-6y=-18 & -x+3y=11

(4,5)

Graphing

100

graph x≤8

.........................

200

graph x+3≤2

..........................

300

graph x≥-1 AND x≤6

........................................

400

graph 3<x+4≥6

.........................

500

Solve the system of equations by graphing y=7/5x-5 & y=3/5x-1

(5,2)