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Mathematics 15 Online
OpenStudy (anonymous):

HELPPPPPPPP What is the value of f(x) = 9^x when x = -2? a.1 - 81 b.81 c.1 - 18 d.18

OpenStudy (anonymous):

ok well you know that the exponent cant be negative right?

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

ok so you have to put it in a fraction

OpenStudy (anonymous):

ok

OpenStudy (anonymous):

|dw:1432672948247:dw|

OpenStudy (anonymous):

sorry for my ugly parenthesis

OpenStudy (anonymous):

now just solve it

OpenStudy (anonymous):

its ok

OpenStudy (anonymous):

so what do you get?

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