Can someone walk me through how to solve for the function f(x) given by the set of ordered pairs below, find f(4). Just enter the numeric answer.

{ (4,9), (11,0), (0,4) }

Question

Can someone walk me through how to solve for the function f(x) given by the set of ordered pairs below, find f(4).  Just enter the numeric answer.

{ (4,9), (11,0), (0,4) }

mathmale · Answer

Looks as tho' this entire function is defined by just three points.  
Each point consists of coordinates x and y:  (x,y).
Which point has x-coordinate 4?
What is the corresponding y-value?

poohdessey · Answer

f(x) = y y=f(x) is there an equation? are you trying to determine if it's true ?

anonymous · Answer

4,9

mathmale · Answer

Would you enclose that in parentheses, please?

anonymous · Answer

(4,9) lol i thought it was a bit more complicated than that ( :

mathmale · Answer

Great.  Now, please go back and re-read the instructions.   What form should your final answer have?

mathmale · Answer

What is the actual final answer?

anonymous · Answer

9?

mathmale · Answer

Yes.  From that one point, (4,9), you can determine that f(4) = 9.  Nice work!

anonymous · Answer

Thank you ( :