equations
linear equations
polynomials
exponentials
potluck
100
3x - 15 = -21
-2
100
What is the slope of 2x + 3y = 6
-2/3
100

factor x2 +10x + 16

(x + 8)(x + 2)

100

Growth or Decay?

y = 100(1.057)x

Growth

100

solve 2x + 12 = -8

-10

200
-4( 2 - x) = 24
x = 8
200
Write an equation parallel to y=3/4 x -3 and contains the point ( 0,5)
y = 3/4 x + 5
200

factor x2 - 49

(x + 7)(x - 7)

200

Find percent rate.

y = 100(1.567)x

+56.7%

200
Paco went to the movies. He spent a total of $50. He spent $10 on food and saw 8 movies. How much did each movie cost?
5
300

4x + 3( x-2) = 5x - 20

x = - 7

300
What is slope of equation perpendicular to 2x -5y = 6
-5/2
300

Find the area of a rectangle if the length is 2 more than 5 times the width. (Hint: answer is an equation)

5w2 + 2w

300

Find percent rate.

y = 20(0.85)x

-15%

300
You purchase a stereo system for $830. The value of the stereo system decreases 13% each year. What is the value of the system after 3 years?
$546.56
400
2x + 3 < -5x -4
x < -1
400
Which is an equation of the line containing the points (-1,5) and (3,9)?
y = x + 6
400

factor 2x2 -11x -21

(2x + 3) ( x -7)

400

You put $200 in a savings account with annual interest rate of 5%. Write an equation to find the amount y in the savings account after x years.

y = 200(1.05)x

400
At a baseball game, Jose bought five hot dogs and three sodas for $17. At the same time, Allison bought two hot dogs and four sodas for $11. Find the cost of one hot dog and one soda.
hot dogs $2.50 soda $1.50
500
Find 3 consecutive integers whose sum is 48.
15,16,17
500
A business purchases a computer for $2000. The value of the computer depreciates $400 per year. Which linear equation gives the value y of the computer after x years?
y = 2000 - 400 x
500

 Factor: 3n² - 15n + 18

3(n - 3)(n - 2)

500

You put $200 in a savings account with annual interest rate of 5%. How much is in the savings account after 10 years?

$325.78

500

Find x + y.

x+y=-2

2x-2y=12

-2

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