​Evaluate the function at the indicated values. (If an answer is undefined, ente

Algebra
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f(x) = x2 + 9x

f(0)      =          

f(3)      =          

f(−3)    =          

f(a)      =          

f(−x)     =          

f(1/a)=

Feb 9th, 2015

f(x) = x2 + 9x

f(0)  =    0^2 + 9*0 = UNDEFINED

f(3)  =    3^2  + 9*3 = 9 + 27 = 36

f(−3)  =    (-3)^2 + 9*-3 = 9 - 27 = -18

f(a)  =    a^2 + 9a

f(−x)  =    -x^2 + 9*-x = x^2 - 9x

f(1/a)= 1/a^2 + 9*1/a = 1/a^2 + 9/a


Feb 9th, 2015

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