Question 401845
m=3/10 thru (-3,-5)
Y=mX+b
-5=3/10*-3+b
-5=-9/10+b
b=-5+9/10
b=(-50+9)/10
b=-41/10 ans. for the Y intercept.
y=3x/10-41/10 ans.
Proof:  
{{{ graph( 300, 200, -6, 5, -10, 10, 3x/10 -41/10) }}} (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, 3x/10 -41/10).