Function Operation

Question

If f(x) = 3x^2 + 1 and g(x) = 1 – x, what is the value of (f – g)(2)?

Answer 1

(3x² + 1) - (1 - x)

 

3x² + x

 

Now evaluate at x = 2

 

3(2)² + 2

 

3(4) + 2

 

14