Question 53570
Because the equation is already in the form of {{{y=mx+b}}} where {{{m}}} is the slope, that means our slope is {{{-3}}}.  To find the y-intercept, we substitute 0 in the equation for x and get {{{y=-6}}}.  The graph is:
{{{graph(300,300,-5,5,-25,25,-3x-6)}}}