Question

f(x)=(x^2 - 1)/(x^2 - 2x - 3)
g(x)=(x - 1)/(x - 3)
Complete the table and explain how the two functions differ.

Answer 1

Substitute x = -2 into f(x) and g(x) and do the calculations and enter the results into the table. And do the same with rest of the x values.

Answer 2

f(2)=((-2)^2 - 1)/((-2)^2 - 2(-2) - 3)
(4-1)/(4+4-3)
3/5