anonymous
  • anonymous
1. Write the equation of the line with a slope of -5 and a y-intercept of (0,3). 2. Write the equation of the line with a slope of -1/3 and passing through the point (6, -4). 3. Write the equation of the line passing through the points (0, -4) and (-2, 2). 4. Write the equation of the line passing through the points (-6,1) and (-4,2). 5. Write the equation of the line with an undefined slope, passing through the point (2, 5). Hint: refer back to lesson 4.04 for help with this one. 6. Write the equation of the line on the following graph.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
chestercat
  • chestercat
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
Luigi0210
  • Luigi0210
Word of advice, if you post this many questions, no one will help. Post them one at a time.
Isaiah.Feynman
  • Isaiah.Feynman
OK I will do a few, then you can use them as examples to do the rest. Alright??
anonymous
  • anonymous
works for me

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More answers

Luigi0210
  • Luigi0210
@Isaiah.Feynman you're not gonna give answers, right?
Isaiah.Feynman
  • Isaiah.Feynman
No boss. Maybe we should split the work I do one example you do another one example, then she can use it to solve the rest.
Luigi0210
  • Luigi0210
Actually.. I really don't care, as long as you don't get caught giving answers it's fine by me. She should close the question so it's not public and mods don't see it.
Isaiah.Feynman
  • Isaiah.Feynman
@bevinlovesyou wanna close the question so we can help without interruptions?
Isaiah.Feynman
  • Isaiah.Feynman
@bevinlovesyou the first question is straightforward the equation of a line is y=mx+b, if you know what each term in the equation represents you should easily get your equation.
anonymous
  • anonymous
that's the problem I don't know anything
Luigi0210
  • Luigi0210
Well that's a problem
Isaiah.Feynman
  • Isaiah.Feynman
Aww. m means slope, b means y-intercept. Now try it out.
anonymous
  • anonymous
y=5x+(0)(3)
Isaiah.Feynman
  • Isaiah.Feynman
Close! but one more thing, since y intercept is the point were the line intersects with the y axis, we pick the y co ordinate of that point, in this case the y co ordinate is 3. Also, the slope is -5 you shouldn't ignore the signs. Try again cutie.
anonymous
  • anonymous
3=-5x+0?
anonymous
  • anonymous
@Isaiah.Feynman
Isaiah.Feynman
  • Isaiah.Feynman
Actually its y=-5x+3. b is the y intercept, and we use the y co ordinate of this intercept. Thus b = 3. The "y" on the left side is just convention don't bother about it. :)
anonymous
  • anonymous
ohh okay.....
anonymous
  • anonymous
still don't get it that much lol
Isaiah.Feynman
  • Isaiah.Feynman
I can explain.
anonymous
  • anonymous
so the y always stays there?
Isaiah.Feynman
  • Isaiah.Feynman
Exactly. The only things you worry about is the "mx" and "b".
Isaiah.Feynman
  • Isaiah.Feynman
And they are not hard to find.
anonymous
  • anonymous
can we do # 3 together
Isaiah.Feynman
  • Isaiah.Feynman
Sure we can!
anonymous
  • anonymous
okay walk me through @Isaiah.Feynman
anonymous
  • anonymous
still there ?
Isaiah.Feynman
  • Isaiah.Feynman
Alrighty, so we have two points and they want us to get the equation. Hmm what do we do first?... we find the slope! but the slope is not given :( how to find the slope? *we scratch our heads and come up with a solution* we will use the points given to find the slope! and there is a formula for that too! its \[m =\frac{ y_{2}-y_{1} }{ x_{2}-x_{1}}\] y2 = 2, y1=-4 x2= -2, x1 =0. Okay now can you get the slope so we'll continue?
anonymous
  • anonymous
Lol your a good teacher keep it coming
anonymous
  • anonymous
m=-3? @Isaiah.Feynman
Isaiah.Feynman
  • Isaiah.Feynman
Yes that's correct!
anonymous
  • anonymous
your better than my online teacher so it so far will be y=-3x?
anonymous
  • anonymous
@Isaiah.Feynman
Isaiah.Feynman
  • Isaiah.Feynman
we have the slope now, we need b (y intercept). To do this we use the last equation there is in line geometry which is \[y-y_{1} = m(x-x_{1})\]. Now don't fret lol we will ignore the y and x the most useful things there is y1, m, and x1.M is the slope ( we have it already) Y1 and X1 are x and y co ordinates of the points we were given. And guess what? we can choose any point we like!!! so choose the point you like and we will find b!
anonymous
  • anonymous
Lol I give up again @Isaiah.Feynman
Isaiah.Feynman
  • Isaiah.Feynman
No don't give up now we are almost done this question! Simple choose one of the two points given to us in the question. :).
anonymous
  • anonymous
-4 and -2 @Isaiah.Feynman
anonymous
  • anonymous
now what ?
anonymous
  • anonymous
can I have answers instead pweaseee im sleeping :/
Isaiah.Feynman
  • Isaiah.Feynman
Umm sorry.. I made a mistake we can't choose any point we like, we must only the first point which is (0,-4). We use this point because its the FIRST point it has x1=0 and y1=-4 and don't forget m=-3!!!. So putting in the values into the equation is showed you we have \[y-(-4)=-3(x-0)\] Simplifying gives us \[y+4=-3x \] Finally, finally we have \[y=-3x-4\] and that's our equation!! Ta da!!!
anonymous
  • anonymous
yayy thanks <3333
anonymous
  • anonymous
what about 4? same way
Isaiah.Feynman
  • Isaiah.Feynman
Yeah same way!!
anonymous
  • anonymous
lol will you do it
Isaiah.Feynman
  • Isaiah.Feynman
Nope. It would be like repeating question 3 again. :P
Isaiah.Feynman
  • Isaiah.Feynman
|dw:1377841650526:dw|
anonymous
  • anonymous
thanks <3 goodnight <3
Isaiah.Feynman
  • Isaiah.Feynman
Good night. Practice when you can.

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