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Evaluate the function f(x)=4*7^x for x=-1 and x=2. show your work

Evaluate the function f(x)=4*7^x for x=-1 and x=2. show your work
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3 votes
Evaluate the function f(x)=4*7^x for x=-1 and x=2. show your work

asked
User Richard Finegan
by
8.1k points

1 Answer

6 votes
remember, x^-1=1/x

so

f(-1)=4(7)^-1=4(1/7)=4/7
f(2)=4(7)^2=4(49)=196
answered
User TeeTracker
by
8.5k points
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