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Expressions and Equations

100

Evaluate X² + 4x - 7y    if x = -2 and y = 3

-25

200

Write an expression for 4 times the sum of 8 and x cubed

4(8 + x³)

300

Simplify:  n(n + 7) + 8n + 3n² - 6

4n² + 15n - 6

400

-2/3 x = 8

x = -12

500

6(x - 3) = 10 + 4(3x + 2) 

-6

Equation Applications

100

2|3x + 4| = 10

1/3 or -3

200

4/10 = x/(x + 4)

4x + 16 = 10x 

16 = 6x

x = 8/3

300

A pair of shoes is 20% off. If the original price was $90 what's the new price? 

90 - 18 = 72

400

solve for m.   (7n + m)q  = r

r/q - 7n = m

500

Solve for y     3x - 2y = 5

y = 3/2x - 5/2

Functions And Graphs

100

Is the following set a function? 

(0,6) (9, 8) (3, -5) (9, 12)

No, X's cannot have two y values. 

200

Sketch a graph of  y = -2/3 x + 3

Graph

300

Graph 6x - y = 3

*solve for y 

y = 6x - 3 then graph

400

Write an equation that passes through (-4, 2) and is parallel to y = 5x + 8

slope is 5.  2 = 5(-4) + ____    = 2 = -20 + ___

y = 5x + 22

500

Nadia drew a scatter plot and picked the points (20, 35) and (40, 60) as her points to draw her line of best fit. 

Complete the line of best fit and use it to predict a value for x = 80

m = (60-35)/(40-20) = 25/20 = 5/4

35 = 5/4(20) + ___

35 = 25 + 10

y = 5/4x + 10 

If x = 80   y = 110

Inequalities

100

-3x < 9

x > -3

200

3(x - 2) -4(x+3) <= 12

3x - 6 -4x -12 <= 12

-x <=30

x>=30

300

10 < 5m + 5  or -15 > 4m + 1 

m>1 or m<-4

400

|4c + 2| < 14

c<3 and c>-4

500

Graph 2x - 3y > 12

Shade down (-y)

Systems

100

Solve: Y = 3x

X + y = 24

x = 6 y = 18

200

-2x + 6y = 8

2x + 3y = 10

y = 2

x = 2

300

Graph the System of Equations

y = 3x - 4

-6x + 2y = 9

Parallel --> No Solution

400

Solve the System of Equations

2x - 4y = 6

3x + 5y = -2

-6x + 12y = -18

6x + 10y = -4

y = -1

x = 1

500

Graph the System of Inequalities

y > 2/3x + 4

2x + 5y <= 10

Graph