Question

what is the equation of a line passing through (2,-1) and parallel to the line represented by the equation y=2x+1?

Answer 1

i think is this:

y = k (2x+1)
but -1 = k (2(2) +1)
k = -1/5

then ,
y = -1/5 (2x+1)

Answer 2

This should be in the mathematics group.