Lines
What is a line composed of?
Points
What is slope?
A constant rate of change
How do you find the y-intercept
Where the line crosses the y-axis
y = 8x
What is the graph of an equation?
All points whose coordinates make the equation true
What is the length of a line with arrows?
Infinity...its goes both ways
What is the slope of a horizontal line?
0 slope.
What is zero?
The y coordinate of all points on the x axis
How should an ordered pair be written?
How do you graph a line?
Make a table of values, plot the points and connect them.
What are the forms of linear equations?
Standard, slope-intercept, and point-slope
What is the slope of a vertical line?
Undefined slope
Which way does the x-axis go?
left to right
What is standard form?
ax + by = c
How many units have we completed?
3
Find the slope and y-intercept from the following.
(0,0), (1, -1), (2, -2), (3, -3) are on this line.
y = -x
What is the run? . . . or what is delta x?
The change in x between two points on the line
How do you find the y-intercept?
Substitute 0 for x and solve for y
Start at the y intercept, then use the slope to find a second point on the line.
How do we graph using the slope-intercept form?
Start at the y intercept, then use the slope to find a second point on the line.
Who is spongebob best friend?
patrick
Create an in equation in STANDARD form from the following.
(6,5) (15, 32)
y = 3x -13 (slope intercept)
-3x + y = -13 (Standard)
Up 3, right 1
How do you graph a slope of 3?
Up 3, right 1
How do you find the x-intercept?
Substitute 0 for y and solve for x.
What is slope intercept form?
y=mx + b
BONUS + 500 POINTS
BONUS + 500 POINTS.