Linking Named Anchors Demo
Definitions:
SLOPE
Slope= m = rise/run = (change in y)/(change in x) = (y2-y1)/(x2-x1)
Standard Form
An equation is linear if it can be written in the
standard form
Ax + By = C, where A, B, and C are integers and A and B are
not
both zero.
Hello, I'm Mr. Gaffey and I would like to have you graph for me!
Background Information
Coordinate Plane
One system used to graph points
on a plane is the rectangular
coordinate system. The frame of reference is two perpendicular lines
called axes. The horizontal line is the x-axis and the vertical line is
the y-axis. The point at which the two axes intersect is the origin.
The x- and y-axes separate the coordinate plane into four regions
called quadrants, which are numbered in a counterclockwise direction.
To Graph an Equation using the Chart Method
- Make a table of values for x and y
- Using graph paper, draw coordinate axes with arrowheads to show
the x and y axes. Label the axes appropriately.
- Plot 4 ordered pairs from the table of values.
- Connect the points in order.
- Label the graph with the equation.
How to Use Slope-Intercept Method - - (y=mx+b)
Start at the y-intercept (b) and move up (positive)
or down (negative) parallel to the y-axis an amount and
direction determined by the numerator (change in y) of the slope.
From your new location, move left (negative) or right (positive)
parallel to the x-axis an amount and direction determined by the
denominator (change in x) of the slope. Mark the
new coordinate! Repeat this process from the new coordinate to get
another point. Find 3 or 4 points and connect them with a ruler!
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