A function #f(x)# is defined as #f(x) = -8x^2#. What is #f(-3)#?
1 Answer
Jun 20, 2018
Explanation:
#"to evaluate "f(-3)" substitute "x=-3" into "f(x)#
#f(color(red)(-3))=-8xx(color(red)(-3))^2=-8xx9=-72#
