Are these two equations perpendicular when graphed?

y=9x-2 and 3y=7-x

3 answers

Mmmmhhh?

Do you know how to read off the slope if the equation is in the form
y = mx + b ?? (one is already in that form)

Is one slope the negative reciprocal of the other ??
I think that both are not perpendicular to each other when graphed.
correct, one has a slope of 9, the other a slope of -1/3
9 * -1/3 ≠ -1