Question 847333


to graph {{{y= -x -3}}} (linear function) all you need is two points that lie on this line

find {{{y}}} if {{{x=0}}}:

{{{y= -0 -3}}} => {{{y=-3}}}

so, one point is ({{{ 0 }}} ,{{{-3}}}) 


find {{{x}}} if {{{y=0}}}:

{{{0= -x -3}}} => {{{x=-3}}}

so, the other point is ({{{ -3 }}} ,{{{ 0 }}}) 

now plot points and draw a line through:

{{{ drawing( 600, 600, -5, 5, -5,5,circle(-3,0,0.1), circle(0,-3,0.1), graph( 600, 600, -5, 5, -5,5, -x-3)) }}}