Math - Algebra problem

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I'm just a little stuck on one problem... Not sure what to do... If it is easy to do, I'm sorry, but I forgot how to do it...

Write the equation in slope-intercept form. Find the slope and y-intercept.

6y = -15

I'm just confused because there is no slope. Does this mean that the slope is automatically 0? Or 1x? I dunno. Please someone help!

[Zien]

Slope intercept form is y=mx+b

It is already in that form so you just have to solve it.

6y divided by 6 and -15 divided by 6

6 divided by 6 =1 and -15 divided by 6 is -2.5 so

(1)y= -2.5 is your answer.

m is slope and y is you intercept so

y intercept=6 and slope= -15 ( I think, im done thoes type of problems in school).

[Link]

EDIT:

m is slope and y is you intercept so

y intercept=6 and slope= -15 ( I think, im done thoes type of problems in school).

6 is your Y and your y-intercept = b so -15 = b so I'm trying to find the slope, but I don't have a "somethingx" in the problem, so that is why I am confused...


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[Zien]

I think it would be

y=1.5x-15

[ZeldaMaster#1#1]

I think so. I think I remember it bring so.

[Link]

Eh, I'll just write down that answer and say to the teacher I couldn't figure it out that well, ok thanks!

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[Azarimanka]

You could just do it on a calculator!

[GDwarf]

6y = -15?

Well then, y = -2.5

You either have more information than that, or you're graphing a horizontal line.

If it's the latter then that's the equation, you have a line that, no matter what the x value is, the y will be -2.5.

[Azarimanka]

Originally Posted by GDwarf

6y = -15?

Well then, y = -2.5

You either have more information than that, or you're graphing a horizontal line.

If it's the latter then that's the equation, you have a line that, no matter what the x value is, the y will be -2.5.

you still could just use a calculator

[Sugar]

Originally Posted by AzaISaZELDALORD

you still could just use a calculator

yeah, an $80 graphing calculator .

I'm pretty sure GDwarf has it right. It's a horizontal line with a y-intercept of -2.5.

[Okami Wolfen]

Originally Posted by AzaISaZELDALORD

you still could just use a calculator

lazy. D:

If there is no slope, then it is undefined, which would make it horizontal, as Tosha and GDwarf said.

Basically, that is one over zero. Don't confuse having no slope and having a zero slope. A zero slope is vertical, while no slope, or undefined slope, is horizontal.

[Ranil]

If it's undefined, then it's a vertical line, guys. No slope is a horizontal line. Trust me, I'm a top student in math.

[avyuir]

You have no x in 6y=-15 so all you have is,

6y=-15
6

y=-2.5 and thats your answer

[Ranil]

Exactly. That would mean there is a slope of zero which would make a horizontal line on the graph. NOT an undefined slope. That is a vertical line.

If you still don't understand, allow me to explain in greater detail. When you have y= and then a number, you get a slope of zero or horizontal line going through the y axis and not the x axis. If you have x= and then a number, you get a vertical line that goes through the x axis and not the y axis. It's undefined, because when you try to calculate the slope of it, you get a number over zero (because slope is rise over run) and you can't divide by zero. Therefore, it is undefined. Understand now?

[Fadock]

Just a little helpful tidbit. It appears that some peopl have trouble distingishing between "Zero Slope" and "Undefined Slope" Look at it this way.

If you're sledding on a hill that looks like this "____________" It will be ZERO fun.... yeah, dumb. But it works.

[Sugar]

yep. A vertical line is always undefined. My math teacher tried to run up a vertical wall several times and, of course, couldn't do it. That was his way of demonstrating that vertical = undefined.

so to sum it all up:

y=1 would be a horizontal line traveling through 1 on the y axis. 0 slope.

x=1 would be a vertical line traveling through 1 on the x axis. undefined.

[Asci]

Originally Posted by GDwarf

6y = -15?

Well then, y = -2.5

You either have more information than that, or you're graphing a horizontal line.

If it's the latter then that's the equation, you have a line that, no matter what the x value is, the y will be -2.5.

Pay more attention to this post and pay no attention to any of the others, for it is correct. Slope is 0.