Question 945719
if you need to graph each function separately, make a table and find two points that lie on a line:

1.

{{{y=-(5/3)x+3}}} 

{{{x}}}|{{{y}}}

{{{0}}}|{{{3}}}->{{{y=-(5/3)*0+3=3}}}

{{{1.8}}}|{{{0}}}->{{{0=-(5/3)x+3}}}=>{{{(5/3)x=3}}}=>{{{x=9/5=1.8}}}

plot points and draw a line through:


 {{{drawing( 600,600, -10, 10, -10, 10,
circle(0,3,.12),circle(1.8,0,.12),
locate(0,3,p(0,3)),locate(1.8,0.5,p(1.8,0)),   
graph( 600,600, -10, 10, -10, 10, -(5/3)x+3)) }}} 

2.

{{{y=(1/3)x-3}}}

{{{x}}}|{{{y}}}

{{{0}}}|{{{-3}}}->{{{y=(1/3)x-3=-3}}}

{{{9}}}|{{{0}}}->{{{0=(1/3)x-3}}}=>{{{(1/3)x=3}}}=>{{{x=9}}}

plot points and draw a line through:


 {{{drawing( 600,600, -10, 15, -10, 10,
circle(0,-3,.2),circle(9,0,.2),
locate(0,-3,p(0,-3)),locate(9,0.5,p(9,0)),   
graph( 600,600, -10, 15, -10, 10, (1/3)x-3)) }}}