Thursday
March 23, 2017

Post a New Question

Posted by on Saturday, April 6, 2013 at 6:11pm.

a function f(x) is defined as f(x)= -8x^2. What is f(-3)?

  • math - , Saturday, April 6, 2013 at 6:37pm

    All you need to do is substitute -3 in place of the x.

  • math - , Saturday, April 6, 2013 at 6:39pm

    substitute -3 for every x in f(x) and simplify.

  • math - , Sunday, April 7, 2013 at 6:21am

    by now you've probably done it, but watch the "-" signs carefully

    f(-3) = -8 * (-3)^2 = -8(9) = -72

Answer This Question

First Name:
School Subject:
Answer:

Related Questions

More Related Questions

Post a New Question