Mathematics
16 Online
OpenStudy (anonymous):
Please help
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OpenStudy (anonymous):
Please
OpenStudy (isaiah.feynman):
First, do you know what zeroes of a function are?
OpenStudy (anonymous):
we just learned this and honestly no
OpenStudy (isaiah.feynman):
Oh, the zeroes are solutions to a polynomial, and on a graph they are points where y = 0. Which means they are on the x axis.
OpenStudy (anonymous):
oh ok
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OpenStudy (anonymous):
ok i got that but im confused by number 2
OpenStudy (anonymous):
@ganeshie8
OpenStudy (wolf1728):
If the factors are x, x-2 and x+5 do you know the solutions (zeroes) of the equation?
OpenStudy (anonymous):
d. 1,11, and 111
OpenStudy (anonymous):
i i honestly have no idea how to do this
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OpenStudy (wolf1728):
Quick lesson
(x+4) * (x-5) = 0
What are the solutions (answers) (or zeroes) of that equation?
OpenStudy (anonymous):
-4 and 5
OpenStudy (anonymous):
i think
OpenStudy (wolf1728):
very good
so if the factors of an equation are
x, x-2, and x+5 then the solutions are?
OpenStudy (anonymous):
2 and -5
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OpenStudy (anonymous):
so then the answer is B
OpenStudy (wolf1728):
and zero
so looking at the 3 graphs, which one shows those values of x when y=0?
OpenStudy (anonymous):
B
OpenStudy (wolf1728):
the factors are x , x-2 and x+5 so the solutions are?
OpenStudy (anonymous):
2 and -5 so then the answer is B
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OpenStudy (wolf1728):
There is a third solution
OpenStudy (anonymous):
oh and 0
OpenStudy (anonymous):
so its A
OpenStudy (wolf1728):
Very good , which makes the answer A
:-)
OpenStudy (anonymous):
thank you
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OpenStudy (wolf1728):
u r welcome