Question

if two lines can have the same slope they cannot cross it is true right?

Answer 1

true

Answer 2

True
if 2 lines have the same slope that means they are PARALLEL.

Answer 3

false. Consider the two lines
x + y = 1
and 2x + 2y = 2

the two line have the same slope and also cross. As the matter of fact, they cross each other infinitely many times.

How if you meant cross that mas an X then yes. But this is more like a convention, not definition

Answer 4

no those lines r parralel

Answer 5

@xxferrocixx, you do know that parallel lines can never intersect, and that if 2 lines have the same slope they are parallel, RIGHT?

Answer 6

totally agree impossible for two lines with congruent slopes to intersect

Answer 7

@SolomonZelman, In mathematics, you can not assume anything else beside the hypothesis.

The statement is: "if two lines can have the same slope they cannot cross"

I have showed that two lines have a same slope AND cross (example above)

However, if the statement is:
"If two lines are parallel, then they don't intersect", then yes, it's true. Because this is the definition of parallel lines

Answer 8

@jim_thompson5910 , @hartnn , @phi,

I hope I am not that stupid, I am positive I am right, can you verify that?

Answer 9

@SolomonZelman pretty sure u r right

Answer 10

For now, I will say the statement is true, simply because I assume two lines can not on top of each other.

Answer 11

If 2 lines have same slope can they intersect?
the question wasn't talking about 3D or anything like this, just regular slopes and lines....

Answer 12

no they can't a postulate specifically states they can't i passed geometry in the eigth grade already now im in algebra 2

Answer 13

@SolomonZelman, i'm not saying you're wrong. This depends on what level of math the question is meant to be. Since it's just algebra 2, the statement is true.

Answer 14

It depends what you mean by "cross"
in math we say "intersect".

two lines with the same slope could be the *same* line, in which case they lay on top of each other and intersect at an infinite number of points.

Unless the questioner defines what they mean by "cross", it is a lousy question.

Answer 15

yay moderators always there to help woot woot

Answer 16

@phi, exactly. This question is actually ambiguous, but somehow I felt like I have made it too complicated. I will go with the convention that crossing is like an X, not on top of each other

Answer 17

I thought that the asker would generally mean this by that question.
(Not saying that line on top of each other, or anything like that.)

Answer 18

i am a child so i don't use those big words like u guys 0.0

Answer 19

Child, how old are you, can you tell me? (I'm 16; to be even.)

Answer 20

haha fourteen

Answer 21

In this problem, I would assume they mean two different parallel lines... in which case they will not intersect (meet or cross)