anonymous
  • anonymous
Help with graph photo! please.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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anonymous
  • anonymous
anonymous
  • anonymous
@DebbieG
anonymous
  • anonymous
i think it is y= 5

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DebbieG
  • DebbieG
y=5 would be a line that DOESN'T depend on x (since x is not a part of the equation). all of the points on the line have y=5, regardless of what x is, so you get a HORIZONTAL line. So it isn't that.
anonymous
  • anonymous
ok..
DebbieG
  • DebbieG
You should be looking for a line equation that has WHAT kind of slope? (what is the sign of the slope?)
anonymous
  • anonymous
what do u mean sign of the slope?
anonymous
  • anonymous
it says checkk all that apply... so multiple answers.
DebbieG
  • DebbieG
The sign of the slope tells you something important about the line, what the line looks like. If it's positive, that's one type of line. If it's negative, that's another type of line. If it's 0, that's a horizontal line.
anonymous
  • anonymous
its a positive line... i think
DebbieG
  • DebbieG
Do you know the difference, in how the line will look, with a positive slope vs. a negative slope?
DebbieG
  • DebbieG
A "line" isn't positive or negative.... a slope is. Back up, one step at at time. :) Do you know the difference, in how the line will look, with a positive slope vs. a negative slope?
anonymous
  • anonymous
yes
DebbieG
  • DebbieG
Ok, tell me. :)
anonymous
  • anonymous
negative will be at the bottom.
DebbieG
  • DebbieG
I'm really not sure what that means. That isn't what I'm getting at... there is a very specific VISUAL interpretation of positive vs. negative slope. It has nothing to do with "at the bottom". In one case (either positive slope or negative slope) the line "rises" as you go from left to right (as x increases, y increases). In the other, the line "falls" from left to right (as x increases, y decreases). So which is which? This is important to understand.
anonymous
  • anonymous
i think A abd B is the answer because the other 2 has negatives and this slope is not negative.
DebbieG
  • DebbieG
I'm going to have to leave very shortly, so let me just explain the rest of what you need to do: Determine whether the slope of this line is positive or negative. There isnt much more to "match up" with the equations, other than whether slope is positive or negative (which should it be, here??) and whether the y-intercept is positive or negative (which should it be, here??). Once you interpret the graph to know those 2 things, then you just need to put each equation into the form y = mx + b Then look for the slope and intercept that both have the correct signs, matching what is in the picture. We already talked about the first one, so you don't need to worry about it (y=5 is a horizontal line with slope m=0). But you'll need to see the slope and y-intercept for the other 3 options (one is already in y = mx + b form).
DebbieG
  • DebbieG
First of all, I already told you NOT A, A is a horizontal line. A has m=0, this line does not have slope m=0. Why do you think this line does not have negative slope?
anonymous
  • anonymous
i changed my mind.
anonymous
  • anonymous
its C i was wrong
DebbieG
  • DebbieG
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DebbieG
  • DebbieG
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DebbieG
  • DebbieG
I think it's C and ONE of the other 2, you have to solve them for y=mx + b to see the slope value.. sorry, I MUST go, good luck!

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