On a scatter plot, this line will help you make predictions about future data.
Trend Line or Line of Best Fit
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 x^2 - 49
(x + 7)(x - 7)
200
square root of 16x^2
4x
200
Ashley went to the movies. She spent a total of $50.
She 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.
5x^2 + 5 x
300
find the distance between (5, 2) and (-2, 3)
5 times the square root of 2
(or square root 50)
300
Part 1: y = mx + b is know as this.
Part 2: m identifies this.
Part 3: b identifies this.
Slope - Intercept Form.
m is slope.
b is the y-intercept.
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 2x^2 - 8x - 24
2 (x + 2) (x - 6)
400
This it the quadratic equation and the reason you use it.
-b + or - the square root of b squared - 4ac all over 2a
To find the x-intercepts or zeros of an equation
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
What is volume of a rectangular prism with a length of
2x+5, a width of 3x and a height of 4x - 1.
24x^3 - 66 x^2 - 15x
500
A 25 ft ladder is leaning against a building and is 3 feet away from the building. How high is the ladder on the building?