First find the slope of the line
.
Rewrite the line in slope-intercept form y = mx + b, where m is slope and b is y-intercept.
\Apply addition property of equality: If a = b than a + c = b + c.
\
(Add 2y to each side)
(Apply additive inverse property:
)
Apply subtraction property of equality: If a = b than a
c = b
c.
(Subtract 6 from each side)
(Apply additive inverse property:
)
(Divide each side by 2)
(Cancel common terms)
Compare the equation with slope-intercept form and find the slope of the line.
\ = 
If two lines are perpendicular, the slope (m1) of one line is opposite reciprocal of the second line slope (m2). It can be represented as,
.
Slope of the line perpendicular to given line is 
So, slope of the new line =
.
Graph the line using given point and slope.
\1. Draw a coordinate plane.
\2. Plot the given point (4,
2).
3. Find the next point using
. Start at (4,
2) and go down 2 units and 3 unit right, then mark a dot and label it.
4. Draw a line through these points.
\\
_slope_minus%202by3.gif\")
Graph of the line passing through the point (4,
2) and slope
is
_slope_minus%202by3.gif\")