Question 734609

the ordered pairs for {{{7x-4y=28 }}}

1st ordered pair, Where {{{x=0}}}

{{{7*0-4y=28 }}}

{{{-4y=28 }}}

{{{y=28/-4 }}}

{{{y=-7 }}}

1st ordered pair is ({{{0}}},{{{-7 }}})


2nd ordered pair, Where {{{y=0}}}

{{{7x-4*0=28 }}}

{{{7x=28 }}}

{{{x=28/7 }}}

{{{x=4 }}}

2nd ordered pair is ({{{4}}},{{{0 }}})



3rd ordered pair, Where {{{y =-14}}}

{{{7x-4*(-14)=28 }}}

{{{7x+56=28 }}}

{{{7x=28-56 }}}

{{{7x=-28 }}}

{{{x=-4 }}}

3rd ordered pair is ({{{-4}}},{{{-14 }}})