Question 936127
slope intercept form : y= mx+c
where m =slope
 c= y-intercept
slope (m)=5
hence y= 5x+c-------------------------eq(1)

this line is passing through (1,2)
hence, put x,y values in the above equation
   2= 5*1+c
  2=5+c
  move 5 to the left
 2-5=c
 -3= c
  c=-3
put c= -3 in eq(1)
 Hence required equation    y= 5x-3