# Let #f(x) = x^2 - 3x - 7# how do you find f(-3)?

##### 1 Answer

Aug 19, 2016

f(-3) = 11

#### Explanation:

To evaluate f(-3), substitute x = - 3 into f(x)

#rArrf(color(red)(-3))=(color(red)(-3))^2-3(color(red)(-3))-7#

#=9+9-7=11#