Question 661646


{{{3x-y=9}}}

{{{3x-9=y}}}

it's linear function, graph will e a line; so, all you need is the ({{{x}}},{{{y}}}) coordinates of two points, plot them on Cartesian coordinate system and draw a line through

so, choose two values for variable;easiest way is to find {{{x-intercept}}} and {{{y-intercept}}}

set {{{x=0}}} and find {{{y-intercept}}}

{{{3*0-9=y}}}

{{{-9=y}}}

one point is ({{{0}}},{{{-9}}})


set {{{y=0}}} and find {{{x-intercept}}}

{{{3x-9=0}}}

{{{3x=9}}}

{{{x=3}}}


second point is({{{3}}},{{{0}}})


now graph it:

{{{ graph( 600, 600, -10, 10, -10, 10, 3x-9) }}}