Write 10x+2y=1 perpendicular with y intercept =3

Question

how do I solve this what’s the answer 

Answer 1

y = mx + b

 

b = 3  [given]

 

Its slope must be the negative reciprocal of the slope of the given line.

 

m = -1/(-10/2) = 2/10 = 1/5

 

y = (1/5)x + 3