good, so you know x^3 looks like this:|dw:1399905305257:dw|
geerky42 (geerky42):
you do notice that one end goes to negative infinity and other one goes to positive infinity, right?
OpenStudy (anonymous):
yeah i did
geerky42 (geerky42):
so what do that mean for our roots?
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geerky42 (geerky42):
how many roots can function with x^3 have?
OpenStudy (anonymous):
C
geerky42 (geerky42):
you think function can only have two roots?
OpenStudy (anonymous):
hmm
geerky42 (geerky42):
just to check, do you know what root is?
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geerky42 (geerky42):
not actual roots, im asking you do you know what root means?
OpenStudy (anonymous):
opposite operation of applying exponents
geerky42 (geerky42):
lol, well, that's radical (square root or something)
if you were asked to find root of function, they basically want you to find zero, or x-intercept.
root is just another way to say zero or x-intercept.
geerky42 (geerky42):
so do you think this function still have two roots?
OpenStudy (anonymous):
ohh ok haha, and no i think its more than 2
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