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Answer 1 · 2017-03-31T09:34:36

Find the x and y intercepts and draw a line through them.

If you have the equation of a line in standard form $ax+by =c$ , then
you can find the $x and y$ -intercepts really easily.

To find the $x$ -intercept, make $color(red)(y=0)$

$x-color(red)(y) =8$
$x-color(red)(0) =8" "larr$ solve for $x$
$x=8" "larr$ this is the $x$ -intercept

To find the $y$ -intercept, make $color(blue)(x=0)$

$color(blue)(x) -y =8$

$color(blue)(0) -y =8" "larr$ solve for $y$
$-y=8$

$y = -8" "larr$ this is the $y$ -intercept
graph{x-y=8 [-16.79, 23.21, -16.56, 3.44]}