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Slope and a Point
You can graph a line using one point on the line and
the slope. First, graph the point . Then, start at that
point and use the slope to find another point.
Slope Intercept Form
Sometimes, you write equations so you can find the
slope and y intercept of a line just by looking at the
equation .
y= m x+ b
Here m= slope, and b = yintercept.
Example: Find slope and y  intercept of y =x2
Solution : Compare the above equation with the
Slope intercept form y= m x+ b
we have m=1 and b=2
The slope is 1 and yintercept is 2.
The Standard Form.
Linear equations can be written in many ways. The
standard form is one way.
Standard form is Ax+ By=C
You can rewrite an equation in standard form as an
equation in slope intercept form.
Example: Write the equation 3x+y=7 in slopeintercept
form.
Solution : substract 3x from both sides
3x3x+y=73x
y=3x7
This is slope intercept form …
Therefore you can write 3x+y=7 as y=3x7.
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