The line equation in slope-intercept form is , where m is the slope
and b is the y-intercept.
\ \ \ (Subtract
from each side)
(Apply commutative property of addition:
)
(Apply additive inverse property:
)
(Apply additive indentity property:
)
Next find the slope of the line.
\Compare the equation with slope-intercept form and find the slope of the line.
\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, .
So, slope of the line perpendicular to given line is
(Product of two same signs is positive)
Substitute =
and
in the point-slope form equation
(Substitute
)
(Product of two same signs is positive)
(Apply distributive property:
)
(Multiply:
)
(Divide:
)
(Subtract 2 from each side)
(Apply additive inverse property:
)
(Apply additive indentity property:
)
(Subtract:
)
The slope-intercept form line equation is .