Question 91433
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(x)=3x^2 +4x-2}}}


Here you fine the required function values, replace x by the given value.

a). f(0) ==>


{{{ f(0)=3*(0)^2 +4*0-2}}}


==> {{{ f(0)=0 + 0-2}}}


==> f(0) = -2



b). f(3) ==>



 {{{ f(3)=3*(3)^2 +4*3-2}}}


==> {{{ f(3)=3*9 + 12 -2}}}


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


==> f(3) = 37



c). f(-5) ==> {{{f(-5)=3*(-5)^2 +4*(-5)-2}}}


==> {{{f(-5)=3*25 +4*(-5)-2}}}


==> {{{f(-5)=75 - 20 -2}}}


==> f(-5) = 53



d). f(b) ==> {{{f(b)=3*(b)^2 +4*(b)-2}}}


==> {{{f(b)=3(b)^2 +4b-2}}}


e). f(5a)==> 


{{{f(5a)=3*(5a)^2 +4*(5a)-2}}}



==> {{{f(5a)=3*25(a)^2 +20a-2}}}


==> {{{f(5a)=75(a)^2 + 20a-2}}} 



Hope you found the explanation useful.


Regards.


Praseena.