Question

Are these two lines perpendicular
y=x+1 and y=-x+1

Answer 1

yea

Answer 2

to find slope of line in form y=mx+c m=slope
2 lines r perpendicular if m1 *m2=-1

Answer 3

product of slope is -1

Answer 4

Yea, thats true thanks

Answer 5

No they're not, their slopes should be negative inverse reciprocals of each other with a product -1

Answer 6

What? So they are not perpendicular?

Answer 7

But the opposite resoprical of 1/1 is -1/1 is it not?

Answer 8

@waheguru you right,oops

Answer 9

Lol, its ok