Question 302251
Gradient of the slope = {{{(-3-2)/(2-(-1))}}} = -5/3

Sub (-1,2) into Y = (-5/3)*X + C : 

2 = (-5/3)*(-1) + C 

2 = 5/3 + C

C = 2 - 5/3

C = 1/3

Therefore, {{{Y = (-5/3) X + (1/3)}}}

={{{3Y = -5 X + 1}}}