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OpenStudy (donnie1999):
OpenStudy (donnie1999):
@phi
OpenStudy (advert):
need Help
OpenStudy (phi):
a^x passes through lots of points (an infinite number)
OpenStudy (donnie1999):
1st drop down menu (0,a)
(0,1)
(0,2)
(0,-1)
2nd drop down menu
(1,0)
(1,1)
(1,a)
(1,-2)
3rd drop down menu
above
below
on the
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OpenStudy (phi):
but I would immediately think of a^0 (i.e. when x is 0)
and a^1 (when x is 1)
as "easy" points to list.
OpenStudy (phi):
do you know what (for example)
2^0 is equal to ?
OpenStudy (donnie1999):
1?
OpenStudy (phi):
yes, and that "rule" works for all numbers. in other words, no matter* what a is
a^0 = 1
so you know (0, 1) is on the graph.
* of course, there is one exception. a=0 won't work. but I think we can assume a is not 0 in this problem
OpenStudy (phi):
what (x,y) point do you get for x=1 ?
any idea ?
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OpenStudy (donnie1999):
Im clueless right now... sadly
OpenStudy (phi):
can you "put in" 1 for x in
y= a^x
??
OpenStudy (phi):
what "formula" do you get when you replace x with 1 in
y= a^x
?