equations
3x - 15 = -21
-2
What is the slope of 2x + 3y = 6
-2/3
factor x2 +10x + 16
(x + 8)(x + 2)
Give an example of an irrational number
answers will vary
(x+5)/12 = (x-2)/8
16
-4(2 - x) = 24
x = 8
Write an equation parallel to y=3/4 x -3
y = 3/4 x + "any number"
factor x2 - 49
(x + 7)(x - 7)
sqrt(9x^4)
3x2
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
4x + 3(x-2) = 5x - 20
x = 7
What is slope of equation perpendicular to y = 2/5x +6
-5/2
Find the equation for the area of a rectangle (in terms of the variable "w" representing the width) if the length is five times more than the width.
5w2
3sqrt(16x^4y^8
12x2y4
You purchased a classic stereo system for $1000. The value of the stereo system increases by 10% each year. What is the value of the system after 2 years?
$1210
2x + 3 < -5x -4
x < -1
Which is the slope of the line containing the points (-1,5) and (3,9)?
m = 1
factor 2x2 -11x -21
(2x + 3) ( x -7)
What is the quadratic formula and why do you use the quadratic formula?
-b +- the square root of b^2 -4ac divided by 2a to find the x-intercepts or roots of an equation
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.
Hint: "SYSTEM OF EQUATIONS"
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
What is area (equation) of a trapezoid whose height is 8, has one base represented by "x" and the other base which is 3 times greater.
16x
A 10 ft ladder is leaning against a building and is 6 feet away from the building. How high is the ladder on the building?
Hint:
a^2 + b^2 = c^2
8 ft
Find x and y intercepts for:
-2x + 3y = 36
x = -18 ; y = 12