anonymous
  • anonymous
find the slope between (1,6) and (-8, 12)
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
slope is\[\frac{ y2-y1 }{ x2-x1 }\]
anonymous
  • anonymous
that is the formula
anonymous
  • anonymous
yes

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More answers

anonymous
  • anonymous
i already know that just confused on how to do it lol
anonymous
  • anonymous
\[\frac{ 12-6 }{ -8-1 }\]
anonymous
  • anonymous
now just subtract
anonymous
  • anonymous
6/-7
anonymous
  • anonymous
6 is right
anonymous
  • anonymous
oh 9
anonymous
  • anonymous
is that right
anonymous
  • anonymous
ok thanks
anonymous
  • anonymous
it would be -9
anonymous
  • anonymous
yes I forgot the negative sign you must be a whiz at math thanks
anonymous
  • anonymous
haha thanks and no problem :)
anonymous
  • anonymous
y=5x-7 m= b=
anonymous
  • anonymous
Im not sure on this one sorry
anonymous
  • anonymous
can someone help me
anonymous
  • anonymous
I would post that question up
anonymous
  • anonymous
m= and y=
mathstudent55
  • mathstudent55
Compare y = 5x - 7 with y = mx + b Can you see what m and b are?
anonymous
  • anonymous
yes thanks
anonymous
  • anonymous
x+y =0
anonymous
  • anonymous
would it be 1
mathstudent55
  • mathstudent55
Are you looking for m and b for x + y = 0?
anonymous
  • anonymous
yes
mathstudent55
  • mathstudent55
Then remember how we looked at y = 5x - 7, and we directly compared to y = mx + b, so we can conclude m = 5 and b = -7?
anonymous
  • anonymous
yes
anonymous
  • anonymous
ok
mathstudent55
  • mathstudent55
Now you have x + y = 0. If you solve for y, and express it as y = ... You'l be able to again get m and b. First solve x + y = 0 for y. What do you get?
anonymous
  • anonymous
1
mathstudent55
  • mathstudent55
No. I don't want m yet. Do one step at a time. If you have equation x + y = 0, solve it for y. You need to subtract x from both sides.
anonymous
  • anonymous
so O is the answer Zero or undefined
mathstudent55
  • mathstudent55
I give up. I've asked you to solve the equation x + y = 0 for y, a few times. I told you you need to subtract x from both sides. If you don't want to follow what I ask, I can't help you.
anonymous
  • anonymous
Im asking you to explain what to do because Im not sure how to do the problem or write it x-x + y = 0-x
mathstudent55
  • mathstudent55
Ok, I'll explain it now that I see you are trying to solve for y.
mathstudent55
  • mathstudent55
|dw:1370794502518:dw|
anonymous
  • anonymous
ok thanks
mathstudent55
  • mathstudent55
When you solve x + y = 0 for y you get y = -x. Now compare y = -x with y = mx + b. y = -x is the same as y = -x + 0, so m = -1 and b = 0
mathstudent55
  • mathstudent55
wlcm
anonymous
  • anonymous
(2qr^5)^2
mathstudent55
  • mathstudent55
You need to know theses rules of powers: 1. (ab)^n = a^nb^n When a product is raised to a power, raise every factor to the power. 2. (a^m)^n = a^(mn) When you raise a power to a power, multiply the exponents. (2qr^5)^2 = Apply the first rule: = 2^2q^2(r^5)^2 Apply the second rule: = 4q^2r^10

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