anonymous
  • anonymous
algebra
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
anonymous
  • anonymous
@MARC_
anonymous
  • anonymous
\[Formula~for~slope~is~m=\frac{ y_2-y_1 }{ x_2-x_1 }\]

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anonymous
  • anonymous
\[Given~p=(2\frac{ 1 }{ 2 },-1\frac{ 1 }{ 2 })~and~q=(-\frac{ 1 }{ 2 },\frac{ 1 }{ 2 })\]
Directrix
  • Directrix
|dw:1449478234509:dw|
anonymous
  • anonymous
\[Let~say~p=(2\frac{ 1 }{ 2 },-1\frac{ 1 }{ 2 })=(x_1,y_1)\]
anonymous
  • anonymous
\[Let~say~q=(-\frac{ 1 }{ 2 },\frac{ 1 }{ 2 })=(x_2,y_2)\]
anonymous
  • anonymous
\[Substitute~this~value~into~this~formula~of~slope\]
anonymous
  • anonymous
\[m=\frac{ y_2-y_1 }{ x_2-x_1 }\]
anonymous
  • anonymous
\[m=\frac{ \frac{ 1 }{ 2 }-(-1\frac{ 1 }{ 2 }) }{ -\frac{ 1 }{ 2 }-2\frac{ 1 }{ 2 } }\]
skullpatrol
  • skullpatrol
Where are you having problems @ekkerking?
anonymous
  • anonymous
\[m=\frac{ \frac{ 1 }{ 2 }+\color{red}{1\frac{ 1 }{ 2 }} }{ -\frac{ 1 }{ 2 }-\color{red}{2\frac{ 1 }{ 2 }} }\]Convert the mixed number into improper fraction
anonymous
  • anonymous
damm this look difficult
anonymous
  • anonymous
i still can't ge the right answer
skullpatrol
  • skullpatrol
BEGIN by converting all the mixed numbers into improper fractions :-)
anonymous
  • anonymous
\[m=\frac{ \frac{ 1 }{ 2 }+\frac{ 3 }{ 2 } }{ -\frac{ 1 }{ 2 }-\frac{ 5 }{ 2 } }\]
anonymous
  • anonymous
\[m=\frac{ \frac{ 1+3 }{ 2 } }{ \frac{ -1-5 }{ 2 } }\]
anonymous
  • anonymous
\[m=\frac{ \frac{ 4 }{ 2 } }{ \frac{ -6 }{ 2 } }\]
anonymous
  • anonymous
simplify it @EKKERKING
anonymous
  • anonymous
−23
anonymous
  • anonymous
-2/3
anonymous
  • anonymous
correct!
anonymous
  • anonymous
that not the final answer
skullpatrol
  • skullpatrol
Just like that^ Then carefully sub them into the formula be sure to carry the sign of the the fraction too.
Directrix
  • Directrix
>that not the final answer Why do you say that? @EKKERKING
anonymous
  • anonymous
i put that and it was wrong
skullpatrol
  • skullpatrol
Good question^
Directrix
  • Directrix
How could this be wrong? See attachment.

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