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Mathematics 22 Online
OpenStudy (anonymous):

What is the value of g[f(4)] for the functions f(x) = 2x + 1 and g(x) = 2x - 5?

OpenStudy (amistre64):

what will be our value for f(4)?

OpenStudy (anonymous):

9 and 3

OpenStudy (amistre64):

f(4) only has one value so it cant be both

OpenStudy (anonymous):

so 9

OpenStudy (amistre64):

good; then g(f(4)) means g(9)

OpenStudy (amistre64):

what is g(9) ?

OpenStudy (anonymous):

13

OpenStudy (amistre64):

correct

OpenStudy (amistre64):

therefore; g(f(4)) = g(9) = 13

OpenStudy (anonymous):

ahh i c, thnx

OpenStudy (amistre64):

yw

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