Mathematics
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OpenStudy (anonymous):
Help please
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OpenStudy (anonymous):
Please
OpenStudy (anonymous):
@Australopithecus
OpenStudy (australopithecus):
Where are you stuck exactly?
OpenStudy (anonymous):
like i dont understand question 4
OpenStudy (australopithecus):
Well two linear functions are the same if they have the same y-intercept and slope
y = mx + b
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OpenStudy (anonymous):
A and B are the same
OpenStudy (australopithecus):
yeah they are
OpenStudy (anonymous):
so A and B are eliminated
OpenStudy (australopithecus):
C just gives you values, you can either sub the x values into A and see if they give the same y
OpenStudy (anonymous):
so then D is correct
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OpenStudy (australopithecus):
why do you say that
OpenStudy (australopithecus):
plug x=-2 into y = 3x + 1
OpenStudy (australopithecus):
what do you get?
OpenStudy (anonymous):
because when you plug in C into A it equals
OpenStudy (australopithecus):
test all the points
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OpenStudy (australopithecus):
All functions are not linear
OpenStudy (anonymous):
i did and they all work
OpenStudy (australopithecus):
or it could have a different slope
OpenStudy (australopithecus):
but intersects at the same point as another function
OpenStudy (australopithecus):
Check once more
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OpenStudy (anonymous):
ok
OpenStudy (australopithecus):
all points
OpenStudy (anonymous):
ok i got that c is the correct answer
OpenStudy (australopithecus):
:D good forgot to add the plus 1
OpenStudy (anonymous):
kk thanks
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OpenStudy (australopithecus):
no problem hope I was helpful