One line passes through (5, -7) and (-4, -9). Another line passes through (6, 2) and (-3, 0). Determine whether the lines are parallel, perpendicular, or neither.

Question

anonymous · Answer

do you know how to solve?

anonymous · Answer

no

anonymous · Answer

try y - y1 over x - x1

anonymous · Answer

um how do i set that up?

anonymous · Answer

fraction

anonymous · Answer

explain

anonymous · Answer

just get a graph and plot the points if you cant set up an equation

loinducoeur · Answer

$$\frac{ y _{2}-y _{1} }{ x _{2}-x _{1} }$$I think that's what @alcathcart is trying to say.

anonymous · Answer

get graph paper and plot both  lines

anonymous · Answer

yes thats what i was going for oops!

anonymous · Answer

attachment

anonymous · Answer

now what ?

loinducoeur · Answer

I don't think you've plotted the points right.

anonymous · Answer

are you sure?

loinducoeur · Answer

Yeah, I'll do my own and show you.

loinducoeur · Answer

attachment

anonymous · Answer

i see now so they would be parallel?

loinducoeur · Answer

Yep. But to really make sure, you should calculate the gradient with the equation I posted up there.

anonymous · Answer

okay thank you! can you help me with another question?

loinducoeur · Answer

Sure, but post it separately, in case I can't help you with it, and someone else might!