Question 956732
If the general form of one equation
looks like:
{{{ y = m*x + b[1] }}},
then, for the other line to be perpendicular
to this one, the equation must look like:
{{{ y = (-1/m)*x + b[2] }}}
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{{{ b[1] }}} and {{{ b[2] }}} are y-intercepts
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For example:
For the 1st line:
{{{ m = -1/2 }}}
{{{ b[1] = 7 }}}
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For the 2nd line:
{{{ -1/m = -1/(-1/2) }}}
{{{ -1/m = 2 }}}
{{{ b[2] = 1 }}}
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Here's the lines:
{{{ y = -(1/2)*x + 7 }}}
{{{ y = 2x + 1 }}}
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Here are the plots:
{{{ graph( 600, 600, -5, 18, -5, 18, -(1/2)*x + 7, 2x + 1 ) }}}