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anonymous
 one year ago
Given the following functions f(x) and g(x), solve f[g(7)] and select the correct answer below:
f(x) = 4x + 21
g(x) = 2x + 2
16
49
85
784
anonymous
 one year ago
Given the following functions f(x) and g(x), solve f[g(7)] and select the correct answer below: f(x) = 4x + 21 g(x) = 2x + 2 16 49 85 784

This Question is Closed

cwrw238
 one year ago
Best ResponseYou've already chosen the best response.1oops  my bad thinking now you need to plug x = 16 into f(x)

cwrw238
 one year ago
Best ResponseYou've already chosen the best response.1 this gives you the value of f[g(7)]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0can you help with another ?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Given the functions f(x) = 7x + 13 and g(x) = x + 2, which of the following functions represents f[g(x)] correctly? f[g(x)] = 7x + 15 f[g(x)] = 7x + 27 f[g(x)] = 7x2 + 15 f[g(x)] = 7x2 + 27

cwrw238
 one year ago
Best ResponseYou've already chosen the best response.1you need to replace the x in f(x)  that is 7x + 13  by g(x) which is x + 2 then simplify so we get 7(x + 2) + 13  can you simplify this further?

cwrw238
 one year ago
Best ResponseYou've already chosen the best response.17(x + 2) + 13 = 7*x + 7*2 + 13 = ?

cwrw238
 one year ago
Best ResponseYou've already chosen the best response.1you distribute the 7 over the x + 2

cwrw238
 one year ago
Best ResponseYou've already chosen the best response.1 that was the first step

cwrw238
 one year ago
Best ResponseYou've already chosen the best response.1so now its just simplifying 7x + 7*2 + 13

cwrw238
 one year ago
Best ResponseYou've already chosen the best response.1surely you know what 7 times 2 is?

cwrw238
 one year ago
Best ResponseYou've already chosen the best response.1right so we have 7x + 14 + 13  now is just one add and you have the answer
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