Question

Linear Equations: Kinda need help understanding which formula belongs to which line. Question in the comments.

Answer 1

\[[Slope = \frac{ a }{ 0 }; x = some.number] <- Horizontal.Line?\]\[[Slope = \frac{ 0 }{ a }; y = some.number] <- Vertical.Line?\]

Answer 2

think of it this way... if x=3 then that means anywher eon the line x must equal three. thus you can change the y, but the x cannot change because it equals 3. if you can change y, than that means it's vertical

Answer 3

another way to see it is that slope a/0 is undefined, or +- infinity... that corresponds to a vertical line

Answer 4

Wait, so [a/0; x = some number] is a horizontal line?

Answer 5

What does a/0 equal?

Answer 6

Okay I got it.

Answer 7

As in 6/0, 10/0 ?

Answer 8

So, now, what are you saying the answer is?

Answer 9

no @Sadworld

Answer 10

>>>Wait, so [a/0; x = some number] is a horizontal line?

Answer 11

@Sadworld This is not true:

>>>Wait, so [a/0; x = some number] is a horizontal line?

Answer 12

Wait, imma post a pic.

Answer 13

Good.

Answer 14

Okay, I reread my material, I got it now. I got it backwards.

Answer 15

I will share with you what my teacher told me. This vertical and horizontal business is confusing.
"
So, remember this:

Hor-Rye is a trigger "word" to remember that a horizontal line has equation y = a number. "Rye" rhymes with y and is the "trigger" for y =.

Ver-Tex is a trigger "word" to remember that a vertical line has equation x = a number.
(the x in Tex is the "trigger")

She also said this: when zero is underfound, it is undefined.

That is sorta loose talk but means if you have a fraction like 5/0, then zero is underfound (in the denominator), so the answer (quotient) is undefined.

@Sadworld

Answer 16

Bottom Line: What you posted in the first reply region is backwards.

Answer 17

Let's practice:

Given the points on a line: (5, 7) and (10, 7), are they points on a vertical or horizontal line?

@Sadworld