If f(x) = x 2 + 1 and g(x) = 3x + 1, find g(20) + f(6).

Question

If f(x) = x 2 + 1 and g(x) = 3x + 1, find g(20) + f(6).

Answer 1

Here's what we have:

f(x) = x² + 1

g(x) = 3x + 1

 

All we need to do is put in the value given into their respective equations:

g(20) = 3 * 20 + 1

g(20) = 61

f(6) = 6² + 1

f(6) = 36 + 1

f(6) = 37

 

61 + 37 = 98