Equations/Inequalities
3x - 15 = -21
-2
What is the slope of 2x + 3y = 6
-2/3
factor x2 +10x + 16
(x + 8)(x + 2)
Solve the following system:
y = -3x + 4
y = 3x - 2
(1, 1)
solve (x+5)/4 = (x-2)/8
12
Write an equation parallel to y=3/4 x -3 and contains the point ( 0,5)
y = 3/4 x + 5
Factor x2 - 49
(x + 7)(x - 7)
Solve the following system:
y = x + 2
x = -3
(-3, -1)
Keshawn 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
4x + 3( x-2) = 5x - 20
x = 7
What is slope of equation perpendicular to 2x -5y = 6?
-5/2
Multiply (5x - 2)(x + 1)
5x2 + 3x - 2
Solve the following system:
4x + y = 2
x - y = 3
(1, -2)
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
2x + 3 < -5x -4
x < -1
Which is an equation of the line containing the points (-1,5) and (3,9)?
y = x + 6
factor 2x2 - 11x - 21
(2x + 3) ( x - 7)
Solve the following system:
x + 7y = 0
2x - 8y = 22
(7, -1)
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
Find 3 consecutive integers whose sum is 48.
15,16,17
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
Multiply (3x - 4)(4x - 5)
12x2 - 31x + 20
Is (-1, 1) a solution to the following system:
y > -x - 2
y < -5x + 2
yes
Find the mean, median, mode, and range of the following set of numbers: 25, 83, 24, 50, 64, 39, 73, 25, 48, 57
mean = 48.8, median = 49, mode = 25, range = 59