The function f is defined by f x = 80 - 6 x . What is the value of f

Question

The function f is defined by f x = 80 - 6 x . What is the value of f 7 ?

Accepted Answer

Choice B is correct. It&rsquo;s given that function f is defined by f x = 80 - 6 x . The value of f 7 can be found by substituting 7 for x in the given function, which yields f 7 = 80 - 6 7 , or f 7 = 80 - 42 , which is equivalent to f 7 = 38 . Therefore, the value of f 7 is 38 . Choice A is incorrect. This is the value of 80 - 67 , not 80 - 6 7 . Choice C is incorrect. This is the value of 80 - 6 1 , not 80 - 6 7 . Choice D is incorrect. This is the value of 80 - 6 + 7 , not 80 - 6 7 .

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