Question 1136562
{{{7x-5y=12}}}

if A(...; {{{9}}}), =>{{{y=9}}}

{{{7x-5*9=12}}}...solve for {{{x}}}

{{{7x-45=12}}}

{{{7x=12+45}}}

{{{7x=57}}}

{{{x=57/7}}}

{{{x=8}}}{{{1/7}}}=>A({{{8}}}{{{1/7}}}; {{{9}}}) or A({{{8.14}}}; {{{9}}})



if B({{{4}}}; ...)=>{{{x=4}}}

{{{7*4-5y=12}}}

{{{28-5y=12}}}

{{{28-12=5y}}}

{{{5y=16}}}

{{{y=16/5}}}

{{{y=3}}}{{{1/5}}}=>B({{{4}}}; {{{3}}}{{{1/5}}}) or B({{{4}}}; {{{3.2}}})


slope:


{{{7x-5y=12}}}.....solve for {{{y}}}


{{{7x-12=5y}}}

{{{7x/5-12/5=y}}}

{{{y=highlight((7/5))x−2.4}}}=> slope is {{{highlight((7/5))}}}




{{{drawing ( 600, 600, -10, 10, -10, 10,
circle(8.14,9,.12),locate(8.14,9,A(8.14,9)),
circle(4,3.2,.12),locate(4,3.2,B(4,3.2)),
graph( 600, 600, -10, 10, -10, 10, 7x/5-2.4)) }}}