For the function f(x)= (x+2)/(x-6)

Question

a) Is the point (3,14) on the graph?

 

b) If x=4, what is f(x)?

Answer 1

(a)

 

Test it!  Is

 

(3 + 2)/(3 - 6) = 14 ?

 

(b)

 

Evaluate it.

 

f(4) = (4 + 2)/(4 - 6) = ?