Horizontal and Vertical Lines
Horizontal Lines go left to right, like the horizon.
All the y-coordinates are 4.
Thats why the equation is y = 4.
The equation of a horizontal line is always y = #
The horizontal line y = 0 is the x-axis
The slope of a horiz
Graphing Lines Using Intercepts
Graphing 2x + 3y = 6 Using Intercepts
The equations that work best with the intercept method are ones like this where
both the 2 and the 3 go into the 6 evenly.
Make a simple table of values:
X
Y
0
0
Find y when x = 0
Calcu
Intercepts
x-intercept: The point(s) at which a graph crosses the x-axis.
The x-intercept(s) will always have a number as the x-coordinate
The x-intercept(s) will always have a zero as the y-coordinate
(2, 0) or (-5, 0) are examples of x-intercepts
y-inte