tayluvsya
how do u find the slope
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myininaya
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What are you given to find the slope?
Yahoo!
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of a Line Ryt ?
Yahoo!
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o.O
tayluvsya
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(1,-4) _(-4,2)
myininaya
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If given two points on a line, then use the slope formula:
\[m=\frac{y_2-y_1}{x_2-x_1}\]
tayluvsya
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ok
tayluvsya
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it dont help
tayluvsya
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?????????
cv2001
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A slope is the change in Y over the change in X. In other words, the incline or decline of a line.
In this case, the line suggested by these points has a slope of
(8+5), the change in Y
divided by
(-4+5), the change in X
13/1 = 13
cv2001
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hope that helps
tayluvsya
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kinda
cv2001
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That gives you slope. To remember that it's "rise over run."
(-5-8)/(-4+3)...which would be 13/1...so that's up 13 units and to the right 1.
cv2001
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does it help now
skullpatrol
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What don't you understand about slope?
tayluvsya
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which numbers go to what
tayluvsya
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skull can u fan me cuz i need to message u
skullpatrol
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OK
tayluvsya
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thnks
skullpatrol
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Do you want to learn about slope?
skullpatrol
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|dw:1357744036921:dw|
skullpatrol
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Do you know how I plotted the points?
tayluvsya
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yes
tayluvsya
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thnks
skullpatrol
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Now we connect the two points with a straight line and find the slope.
skullpatrol
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|dw:1357744632127:dw|
skullpatrol
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Label one point "2" and the other "1"
skullpatrol
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|dw:1357744730852:dw|
skullpatrol
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|dw:1357744805464:dw|
skullpatrol
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Any questions so far?
tayluvsya
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so if its A it will be the 1s
skullpatrol
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What is "A"?
tayluvsya
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like of it was this
tayluvsya
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|dw:1357744800797:dw|
tayluvsya
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the points
and dont laugh at my drawing
skullpatrol
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|dw:1357745099709:dw|
skullpatrol
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Yes!
tayluvsya
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ok
skullpatrol
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It doesn't matter which point you label "A" or "B".
tayluvsya
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ok
tayluvsya
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brb
tayluvsya
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k back
skullpatrol
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|dw:1357745356883:dw|
skullpatrol
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|dw:1357745621032:dw|
tayluvsya
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so it goes like this|dw:1357745633210:dw|
skullpatrol
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Excellent!
skullpatrol
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|dw:1357746023149:dw|
tayluvsya
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so it will be |dw:1357745819919:dw|
tayluvsya
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??
skullpatrol
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Why are you adding?
tayluvsya
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the slopes right
skullpatrol
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|dw:1357746331429:dw|
tayluvsya
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|dw:1357746144509:dw|
skullpatrol
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|dw:1357746405461:dw|
skullpatrol
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Yes.
tayluvsya
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|dw:1357746289688:dw|
tayluvsya
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right?
skullpatrol
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Almost, you should simplify it.
tayluvsya
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|dw:1357746415641:dw|
skullpatrol
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Yes!
tayluvsya
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yay
skullpatrol
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|dw:1357746884797:dw|
skullpatrol
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Now the "slope intercept" form of the equation of this line is y = mx + b where b is the y-intercept.
tayluvsya
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???
skullpatrol
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Have you not covered the equation of a line yet?
skullpatrol
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y = 6x + 2
tayluvsya
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???
tayluvsya
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i dont get it
skullpatrol
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|dw:1357747357912:dw|
hba
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Slope is actually the rise over run of a function :)
tayluvsya
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ok now i think i get it
tayluvsya
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thnks skull
skullpatrol
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np
tayluvsya
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:)
tayluvsya
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how do u post another math question?
tayluvsya
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skull
tayluvsya
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??????????
tayluvsya
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thnks
tayluvsya
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:'(
skullpatrol
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No, I'm not.
tayluvsya
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u unfanned me so i cant message u
skullpatrol
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Watch the Khan academy, it will help you a lot.
tayluvsya
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i wanted to be friends
tayluvsya
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k idc
skullpatrol
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You can ask me for math help any time :-D
tayluvsya
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it says i cant
tayluvsya
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u have 55 fans i cant be one
skullpatrol
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ok I'll fan u
tayluvsya
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thnks
tayluvsya
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|dw:1357847085946:dw|