A line with slope m and passing through point (a,b) is given by
y-b=m(x-a)
the perpendicular slope is 2/1, the point is (0,1)
y-1=2/1*(x-0)
y-1=2x
y=2x+1
The expression is ' 0 ', as in 'zero'. If it were anything else, then that wouldn't help you go back to where you started and get what you forgot.
The first, third, fifth, and last one are right. Do you want me to show you the steps or are u good