Vocabulary 101
Graphing Lines
Intercepts
Slope/Rate of Change
Compare Functions
100
The ratio of the vertical change (rise) over the horizontal change (run).
What is slope?
100
A linear equation in the form y = mx + b.
What is slope-intercept form.
100
The y-coordinate of a point where the graph crosses the y-axis.
What is a y-intercept?
100
Comparing a change in one quantity to a change in another quantity.
What is rate of change?
100
The most basic linear function in the family of all linear functions.
What is the parent linear function.
200
The four regions on a coordinate plane.
What is quadrants?
200
Graph 3
What is the graph of y = x + 2
200
3x + 2y = 6 Answer: 3
What is the y-intercept?
200
A slope that falls (goes down) from left to right.
What is a negative slope?
200
When your slope is a negative number.
What is a reflection?
300
A group of functions with similar characteristics.
What is a family of functions?
300
Graph 4
What is the graph of y = -3/2x + 3
300
y = -4.8x + 1.2 Answer: 0.25
What is the x-intercept?
300
A line that rises from left to right.
What is a positive slope?
300
When your number is greater than 1.
What is a steeper slope (faster)?
400
A linear equation written in the form f(x) = mx + b.
What is function notation?
400
Graph 5
What is the graph of y = -2/3x + 1
400
Graph 1: Answer 4
What is the y-intercept?
400
The rate of change between making $150 in 4 hours and $90 in 2 hours.
What is $30 per hour.
400
When your slope is a fraction less than 1, but greater than 0.
What is a less steep slope (slower)?
500
The non-zero number a in the direct variation equation.
What is the constant of variation?
500
Graph 6
What is the graph of y = 2x?
500
Graph 2 Answer: x-intercept
What is 1.5?
500
The slope of a vertical line.
What is an undefined slope?
500
When you add or subtract a b value to the parent linear function. Example g(x) = x + b or g(x) = x - b
What is a vertical translation (up or down)?
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