he function f is defined by the equationf x x= 7 + 2( ) . What is the value of f x( ) whenx = 4 ?

Question

he function f is defined by the equationf x x= 7 + 2( ) . What is the value of f x( ) whenx = 4 ?

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Solution

To find the value of f(x) when x = 4, you simply substitute x = 4 into the equation.

The equation is f(x) = 7 + 2x.

Substituting x = 4 gives:

f(4) = 7 + 2*4 = 7 + 8 = 15

So, the value of f(x) when x = 4 is 15.

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