# Thread: State a relationship between lines

1. ## State a relationship between lines

I have this midterm coming and i got stuck on this question... and a few others.

State the relationship between
Y=-1/3 x+2 and Y=-1/3 x-2

the / Means Fraction here. can someone also tell me how to input a fraction from microsoft word

2. Parallel: They have the same slope but different y intercepts.

Use equation editor in Microsoft Word.

3. Originally Posted by dwsmith
Parallel: They have the same slope but different y intercepts.

Use equation editor in Microsoft Word.
Thanks. i did but to insert it here

4. Originally Posted by vaironxxrd
Thanks. i did but to insert it here
Why not learn to post in symbols? You can use LaTeX tags

$$\left\lfloor x \right\rfloor \;\& \,\left\lceil x \right\rceil$$ gives $\displaystyle \left\lfloor x \right\rfloor \;\& \,\left\lceil x \right\rceil$

$$\cup$$ gives $\displaystyle \cup$ is union
$$\cap$$ gives $\displaystyle \cap$ is intersection
$$\subseteq$$ gives $\displaystyle \subseteq$ is subset
$$\cup$$ gives $\displaystyle \cup$ is union
$$\in$$ gives $\displaystyle \in$ is element
$$\emptyset$$ gives $\displaystyle \emptyset$ is emptyset
$$\wedge$$ gives $\displaystyle \wedge$ is or
$$\vee$$ gives $\displaystyle \vee$ is and
$$\sqrt{x+1}$$ gives $\displaystyle \sqrt{x+1}$

5. Originally Posted by vaironxxrd
I have this midterm coming and i got stuck on this question... and a few others.

State the relationship between
Y=-1/3 x+2 and Y=-1/3 x-2
Write them as y1= (-1/3)x+ 2 and y2= (-1/3)x- 2. Then y1- y2= 2+ 2= 4. That is, for each value of x, one y value is 4 larger than the other- in terms of the graphs, one line is 4 place higher than the other (so, of course, they are parallel).

That is essentially what dwsmith is saying.
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