Algebra II S1 Review

Linear Functions

100

Tell which quadrant: 

(6,4)

(5, -2)

(-7, 1)

I

IV

II

300

The ice rink charges a flat rate of $120 to rent the rink.  They also charge $4 per student.  What is the INITIAL VALUE of this situation?  

$120

500

Here is a chart of our puppy Blue's weight.  The relationship is linear.  How much did Blue weigh at birth (initial value)? 

# of weeks            weight lbs

4                           16

5                           18.5

6                           21

6 lbs

Slope

100

Find the slope: 

(-10, 8) (-5, 7)

-1/5

300

An electrician charges $85 to make a house call.  He also charges $40 per hour while he is there.  Write an equation to model this situation.  

y=40x + 85

500

Find the slope:  

(3, 4) (3, 7)

Undefined

Solving Equations

100

5(2x - 1) = 25

x = 3

300

4(5x + 2) -5(2x - 3) = 13

x = -1

500

2/3 x - 1/2 = 1/3 + 5/6 x

x = -5

Inequalities

100

2x + 3 > -3 

x > -3

300

Solve & Graph

-5 < 2x + 1 < 13 

-3<x<6

500

-2/3 x - 4 > 2

x < -9

Solve Systems

100

Solve by substitution (find x & y)

2x + 3y = 7

y = 5

(-4 , 5)

300

Solve by elimination

2x + 3y = 20

-2x + y = 4

(1, 6)

500

Solve by elimination

x + y = 4

2x - 3y = 18

(6, -2)