SOLUTION: Please help me solve this. Question; Find the indicated function values. f(x)=3x raise to the power 2 +4x-2 a). f(0) b). f(3) c). f(-5) d). f(b) e). f(5a)

Algebra ->  Functions -> SOLUTION: Please help me solve this. Question; Find the indicated function values. f(x)=3x raise to the power 2 +4x-2 a). f(0) b). f(3) c). f(-5) d). f(b) e). f(5a)      Log On


   

Question 91433This question is from textbook Introductory & Intermediate ALGEBRA
: Please help me solve this.
Question;
Find the indicated function values.
f(x)=3x raise to the power 2 +4x-2
a). f(0)
b). f(3)
c). f(-5)
d). f(b)
e). f(5a) This question is from textbook Introductory & Intermediate ALGEBRA

Answer by praseenakos@yahoo.com(507) About Me  (Show Source):
You can put this solution on YOUR website!
Question:
Find the indicated function values.
f(x)=3x raise to the power 2 +4x-2
a). f(0)
b). f(3)
c). f(-5)
d). f(b)
e). f(5a)

Answer:
+f%28x%29=3x%5E2+%2B4x-2

Here you fine the required function values, replace x by the given value.
a). f(0) ==>

+f%280%29=3%2A%280%29%5E2+%2B4%2A0-2

==> +f%280%29=0+%2B+0-2

==> f(0) = -2


b). f(3) ==>


+f%283%29=3%2A%283%29%5E2+%2B4%2A3-2

==> +f%283%29=3%2A9+%2B+12+-2

==>f(3) = 27 + 12 - 2

==> f(3) = 37


c). f(-5) ==> f%28-5%29=3%2A%28-5%29%5E2+%2B4%2A%28-5%29-2

==> f%28-5%29=3%2A25+%2B4%2A%28-5%29-2

==> f%28-5%29=75+-+20+-2

==> f(-5) = 53


d). f(b) ==> f%28b%29=3%2A%28b%29%5E2+%2B4%2A%28b%29-2

==> f%28b%29=3%28b%29%5E2+%2B4b-2

e). f(5a)==>

f%285a%29=3%2A%285a%29%5E2+%2B4%2A%285a%29-2


==> f%285a%29=3%2A25%28a%29%5E2+%2B20a-2

==> f%285a%29=75%28a%29%5E2+%2B+20a-2


Hope you found the explanation useful.

Regards.

Praseena.