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elixir [45]
3 years ago
14

Given f(x) = 9x - 5 and g(x) = x^2 choose the expression for (f g) (x)

Mathematics
2 answers:
spayn [35]3 years ago
8 0

Answer:

9x²-5

Step-by-step explanation:

Given f(x) = 9x - 5 and g(x) = x², (f g)x means we will have to substitute g(x) value into f(x).

Since f(x) = 9x-5

(f g)x = 9x²-5

Note that g(x) which is equal to x² will be substituted for value of x in the function of x i.e f(x) making 9x²-5 the required answer.

antoniya [11.8K]3 years ago
7 0

Answer:

$ 9x^2 - 5 = 0 $

Step-by-step explanation:

Given: $ f(x) = 9x - 5 $ and $ g(x) = x^2 $.

We are asked to find $ f(g(x)) $

This is composition of two functions. $ f(g(x)) $ means $ g(x) $ becomes the input for $ f(x) $.

So, now $ f(g(x))$ $ = f(x^2) $

$ \implies f(g(x)) = 9(x^2) - 5 $

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