Can somebody please help me? I don't understand the lesson and how to work these problems out. Thank you!

Given the function ƒ(x ) = 3x - 14, find ƒ(3).

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Question

Can somebody please help me? I don't understand the lesson and how to work these problems out. Thank you!

Given the function ƒ(x ) = 3x - 14, find ƒ(3).



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9

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anonymous · Answer

@ParthKohli

parthkohli · Answer

$$\color{blue}{f(x) = 3x - 14}$$$$f(?) = 3? - 14$$$$f(\heartsuit ) = 3\heartsuit - 14$$$$f(1) = 3(1) - 14  = 3 - 14 = -11$$Remember: you just replace all $x$'s.

anonymous · Answer

But what do you replace the x's with?

ccswims · Answer

replace the "x" with 3, because f(3) is saying that now we know hat x is.

ccswims · Answer

what*

anonymous · Answer

Oh! Yeah, now that makes sense :) Thank you, @ccswims and @ParthKohli :)

parthkohli · Answer

No problem.

anonymous · Answer

:) I wish I could give out 2 medals :) You were both helpful, I think I can do this lesson on my own now!