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Mathematics
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OpenStudy (narissa):
can someone help me
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OpenStudy (narissa):
OpenStudy (studygurl14):
What did you get?
OpenStudy (narissa):
my answer is a and d but im not sure
OpenStudy (studygurl14):
Sorry, that's incorrect.
Remember that point slope formula remember has the x - x_1 part.
OpenStudy (narissa):
then its b and d?
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OpenStudy (studygurl14):
If it is x-x_1, and x_1 = -2....
OpenStudy (studygurl14):
two negatives make a positive, so it would end up being x + 2
OpenStudy (texaschic101):
its not D
OpenStudy (narissa):
only c then
OpenStudy (studygurl14):
No. b is correct, and so is c
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OpenStudy (narissa):
this is hard
OpenStudy (studygurl14):
Let me show you. hold on a sec
OpenStudy (narissa):
k
OpenStudy (studygurl14):
Slope = -5
Point: (-2, 4)
Point-slope formula: \(\Large (y - y_1) = m(x-x_1)\)
\(\Large (y-4) = -5(x-(-2))\rightarrow (y-4)=-5(x+2)\)
That's answer choice C
Now, do some rearranging...
\(\Large y-4 = -5(x+2)\rightarrow y - 4 = -5x - 10 \)
\(\Large \rightarrow 5x + y =-10+4\rightarrow 5x+y=-6\)
That's B.
OpenStudy (narissa):
ok it seems kinda hard but maybe not idk i tried a couple myself but thanks for all your help u always explain stuff which makes it easier
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