y=mx+b
Math Vocabulary
Write Equations
Graphing
Combine like terms
100
What is the slope in this equation? y=-3x+4
-3
100
What do we call a letter that represents an unknown number?
Variable
100
Write an equation where the slope is 1/2 and the y-intercept is -8
y = 1/2x - 8
100
Draw a coordinate plane and label the:
x-axis
y-axis
See photo
100
Simplify: 2x + 3x
5x
200
What is the y-intercept in this equation? y=1/2x+2
2
200
What are these symbols called?
Inequalities
200
Write the equation in slope-intercept form: y-intercept is 3 and slope is 5.
y=5x +3
200
What type of slope is this? (Positive, negative, zero, or undefined)
A horizontal line has a ________ slope.
A vertical line has a ________ slope.
[undefined or zero]
Positive
200
2x - 5x +3
-3x + 3
300
What is the slope of this equation? y=-x+2
-1
300
What do we call an equation that gives a straight line when plotted on a graph?
Linear equation
300
Write the slope formula given two points on a line.
y2 - y1
_____
x2 - x1
300
1. A horizontal line has a ________ slope.
2. A vertical line has a ________ slope.
[undefined or zero]
1. A horizontal line has a zero slope.
2. A vertical line has a undefined slope.
300
4y - 2y + 6x - 3x - 2
2y+3x-2
400
What is the y intercept for this line? y=3x
0
400
What is the number in front of the variable called?
Coefficient
400
Rewrite this equation so it is in y=mx+b form:
-9-2x=y
y=-2x-9
400
What do we call a pair of numbers (x, y) on a coordinate plane?
Ordered pair
400
Distribute:
2(x+7)
2x+14
500
What is the slope AND y-intercept of this line? y=5-4x
The slope is -4. The y-intercept is 5
500
What do we call a number that never changes?
Constant
500
Rewrite in slope-intercept form: 2y=4x+6
y=2x+3
500
Draw the coordinate plane and label the quadrants (Q1, Q2, Q3, Q4)
500
Distribute and combine like terms
3(2x + 4) -2
6x+10