Vocabulary
What does m stand for?
slope
y = 2/3x + 5
+ 5
What is the direction of a line that has a positive slope?
Up to the right.
If the slope has a negative sign in the numerator and in the denominator, what sign is it?
Positive.
What does b stand for?
y-intercept
y = -2/3x - 10
slope: -2/3 type: negative
What is the direction of a line that has a negative slope?
Down to the right.
What is the slope of a horizontal line?
0
What does y-intercept mean?
It's the point where the line hits the y-axis
y = 6x + 9
slope: 6 slope type: positive
If the slope is not a fraction, what do we do?
Put it over 1.
What is the slope of a vertical line.
Undefined.
What does the word "linear" mean?
Line
y = x + 2
slope = 1 slope type: positive
How do we find the slope of a line that is graphed on the coordinate plane?
Pick two points and count the rise and the run.
6/25
What is slope-intercept form?
y = mx + b
What is the y-intercept often referred to?
The Starting Point.
Who is your favorite 5th period teacher?
Mr. Trip