How do you evaluate the function #f(x)=x^2+1# for f(-3)?

1 Answer
Jul 30, 2017

See a solution process below

Explanation:

To evaluate the function for #f(-3)# we need to substitute #color(red)(-3)# for every occurrence of #color(red)(x)# and then evaluate the results:

#f(color(red)(x)) = color(red)(x)^2 + 1# becomes:

#f(color(red)(-3)) = color(red)(-3)^2 + 1#

#f(color(red)(-3)) = color(red)(9) + 1#

#f(color(red)(-3)) = 10#