Mathematics
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OpenStudy (anonymous):
The line y − 6 = 2(x + 4) passes through which one of the following points?
a.(-4,-6)
b.(4,-6)
c.(-4,6)
d.(2,6)
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OpenStudy (notamathgenius):
Just plug in the numbers for X and Y
OpenStudy (anonymous):
i don't know how
OpenStudy (notamathgenius):
Ok you see Y right?
well take A for example and put -6 for y and -4 for X and see if they equal the same answer
OpenStudy (notamathgenius):
If they don't go down the list till they do
OpenStudy (anonymous):
it comes up as an error
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OpenStudy (notamathgenius):
y − 6 = 2(x + 4)
-6 - 6 = 2(-4+4)
you do
PEMDAS
parenthesis first
OpenStudy (anonymous):
i did the top and got y=2x+14
OpenStudy (notamathgenius):
Good, now take (-4,-6) again and use it for that
OpenStudy (anonymous):
how woudl i put that
OpenStudy (notamathgenius):
y=2x+14
-6=2(-4)+14
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OpenStudy (anonymous):
i do that but its says it a function
OpenStudy (notamathgenius):
2(-4)=-8+14=6
doesn't equal -6 so a is wrong
OpenStudy (anonymous):
im going to go with it being b
OpenStudy (notamathgenius):
You sure?
OpenStudy (anonymous):
not really
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OpenStudy (notamathgenius):
Well, do what we did with A
over again
it's better than getting it wrong, correct?
OpenStudy (anonymous):
yup
OpenStudy (notamathgenius):
Ok, just do it again
OpenStudy (anonymous):
my friend said its c
OpenStudy (notamathgenius):
It is c
0=0
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OpenStudy (anonymous):
sweet