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# Hey Guy's! May have have some of your assistance, I would greatly appricate it : )

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I'm given the function.

\(F(-2) =\)

and I have the following point's on the graph (Since Webcalc's having a problem with uploading pictures)

THE FOLLWOING POINTS: (1, -2), (0. 1), (-2, 2), (-3, 0);

My answer for the question was 1 but I appread incorrect my judgement was based on how all my other problem's, when they would tell what x was and ask what F(x) was so I tried the opposite for this.

THANKS SO MUCH GUYS FOR YOUR HELP :)

Jul 24, 2019
edited by HiylinLink  Jul 24, 2019

#1
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I think you are given F (-2)    in the point  (-2,2)     i.e.   '2'

Jul 24, 2019
#2
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Thank you, but I was curious how would one would derive the answer, as such?

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Ya just have to 'derive' it from the information given and an understanding of what functions (f(x))= ....   mean unless you are actually GIVEN the function like (for example)   f(x) = x^2 +3x -1

ElectricPavlov  Jul 24, 2019
#7
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Got it, that makes sense, Thanks for the time spent helping me!

#3
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F(-2)   actually asks..."When we put "-2" into "F".....what is the resulting y value???"

Look  at the points (x , y)....note that we have the point  (-2, 2)

This means that when we put -2  into F, we get get 2 as a result

So

F(-2)  =  2   Jul 24, 2019
#4
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OOOOOh so basically with the given point's it's asking if X or F('x') is equal to -2, we cehck our points to see which x is equal to negative 2 then check the Y value?

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Yeppers !

ElectricPavlov  Jul 24, 2019
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I'm curious XD if I missed something extemly important, or I I'm correct XD

#9
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You didn't miss anything

F(x)  = y

So

F(-2)  =  y  ???

So    (x, y)  = (-2, y)    and the point with an x coordinate of -2   has a y coordinate of  2

So

f(-2)  = 2   CPhill  Jul 24, 2019
#10
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Oh I see, THANKS!, really appricate this.

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travisio  Jul 24, 2019
#12
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Thanks, but it's outside of my acess aka my parental restrictions won't let me acess it.