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Can someone help me with this please? I don't know how to do this.
Write the equation for the horizontal line that contains point G(8, 8).
 one year ago
 one year ago
Can someone help me with this please? I don't know how to do this. Write the equation for the horizontal line that contains point G(8, 8).
 one year ago
 one year ago

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tcarroll010Best ResponseYou've already chosen the best response.1
Horizontal lines are of the form y=n where you may have been given a point in the form (m, n). You have such a point G.
 one year ago

piscez.inBest ResponseYou've already chosen the best response.0
keep in mind that a horizontal line is parallel to x axis, and slope is the value of tan of the angle between the x axis and the line
 one year ago

Fang02Best ResponseYou've already chosen the best response.0
@piscez.in: What do you mean by the slope is the value of tan of the angle between the xaxis and the line? Specifically, what do you mean by the value of tan? @tcarroll010: Okay, just a moment please.
 one year ago

Fang02Best ResponseYou've already chosen the best response.0
So it would be something like y = 8  (8)?
 one year ago

piscez.inBest ResponseYou've already chosen the best response.0
@fang02 tan value as in tangent value, like sine cosine, tan etc.
 one year ago

Fang02Best ResponseYou've already chosen the best response.0
Hmm..I do not believe I have learned about the tan value then.
 one year ago

tcarroll010Best ResponseYou've already chosen the best response.1
He means that the equation of a line in slopeintercept form, in general is y = mx + b and that here we have "0" slope, so the mx term disappears. So, we have y=b, or in my notation, y=n. You have point (8, 8) which is the same distance away from the xaxis as the "b" intercept, (0, 8), so you can simplify and use the "n".
 one year ago

piscez.inBest ResponseYou've already chosen the best response.0
@Fang02 oh im sorry hun, well then forget it. But try to roughly draw the line on a paper. Find the y intercept. And you must already be knowing that the slope of horizontal lines( lines parallel to x axis) is always 1
 one year ago

tcarroll010Best ResponseYou've already chosen the best response.1
Not y = 8  (8). Instead, y=n where n = 8
 one year ago

Fang02Best ResponseYou've already chosen the best response.0
So, the answer is pretty much y = 8 then? No need to be sorry pisez.in.
 one year ago

tcarroll010Best ResponseYou've already chosen the best response.1
Yes! You got it. Good job! It's just y=8.
 one year ago

Fang02Best ResponseYou've already chosen the best response.0
Okay, thanks a lot! :) Would you mind helping me with another problem real quick?
 one year ago

Fang02Best ResponseYou've already chosen the best response.0
Write an equation in pointslope form of the line through point J(4, 1) with slope 4.
 one year ago

Fang02Best ResponseYou've already chosen the best response.0
Pointslope form is y2  y1 over x2 over x1 So, I think it would be: 1  4 over something
 one year ago

tcarroll010Best ResponseYou've already chosen the best response.1
pointslope form is going to be:\[y  y _{1} = m(x  x _{1})\] Here, y is y and x is x as variables. x1 and y1 are a SPECIFIC point in the form (x1, y1)
 one year ago

tcarroll010Best ResponseYou've already chosen the best response.1
(x1, y1) is the point you are given that is (4, 1), so x1 is 4 and y1 is 1.
 one year ago

Fang02Best ResponseYou've already chosen the best response.0
I think that (x1, y1) would be (4, 1) right?
 one year ago

Fang02Best ResponseYou've already chosen the best response.0
Why does the 4 turn positive?
 one year ago

tcarroll010Best ResponseYou've already chosen the best response.1
(x1, y1) is the point you are given that is (4, 1), so x1 is 4 and y1 is 1. It's the slope that is 4.
 one year ago

tcarroll010Best ResponseYou've already chosen the best response.1
So now, just substitute.
 one year ago

Fang02Best ResponseYou've already chosen the best response.0
y  y1 = m(x  x1) y  1 = 4 (4  4) ?
 one year ago

tcarroll010Best ResponseYou've already chosen the best response.1
Not quite there yet. What happened to "x"? "x" stays as "x" just like "y" stays as "y". You only substitute for y1, x1, and m.
 one year ago

Fang02Best ResponseYou've already chosen the best response.0
Oh okay. So, y = 1 = 4(x  4)
 one year ago

tcarroll010Best ResponseYou've already chosen the best response.1
You still have a small typo, but you are extremely close now.
 one year ago

Fang02Best ResponseYou've already chosen the best response.0
Would I put x1 in parenthesis to show that it is positive and is just being subtracted? y = 1 = 4(x  (4))
 one year ago

tcarroll010Best ResponseYou've already chosen the best response.1
You don't have to do that, you can just leave it as y  1 = 4(x  4). Notice how after the "y" I changed that from "=" to ""
 one year ago

Fang02Best ResponseYou've already chosen the best response.0
Oh okay, I understand now.
 one year ago

tcarroll010Best ResponseYou've already chosen the best response.1
Very nice working with you and you will get there. Just keep up the good work!
 one year ago
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