SOLUTION: Given that f(x) = x2 + 3 and D = {reals}, find f(-3). Given that g(x) = x + 4 and D = {reals}, find g(3). Given that f(x) = 3x + 1 and D = {integers}, find f(-2). Given that h(x

Algebra.Com
Question 173684: Given that f(x) = x2 + 3 and D = {reals}, find f(-3).
Given that g(x) = x + 4 and D = {reals}, find g(3).
Given that f(x) = 3x + 1 and D = {integers}, find f(-2).
Given that h(x) = x2 - 3 and D = {reals, find h(-4).
Given that g(x) = 2x - 1 and D = {integers}, find g(5).
Given that f(x) = 3x + 1 and D = {reals}, find f(-6).
Given that f(x) = x2 -2x and D = {reals}, find f(2).
Given that f(x) = x - 3 and D = {reals}, find f(-2).
Given that f(x) = 2x2 and D = {reals}, find f(4).
Given that f(x) = 2x3 and D = (reals}, find f(2).

Answer by solver91311(24713)   (Show Source): You can put this solution on YOUR website!
Given f(x) = some function of x, to evaluate f(a), just substitute a for x whereever it occurs in the function and do the arithmetic. I presume D stands for domain, so since all of your values are integers, you don't have any excluded values in any of the stated domains.

Here's how to do the first one:
Given that and D = {reals}, find .



Do the rest of them the same way.

RELATED QUESTIONS

Given h(x)=4x; D={Reals}, g(x)=x-3; D={Reals}, then (h-g)(5)= (answered by stanbon)
Find (f - h)(-3) if f(x) = (x + 1)^2; D = {Reals}, and h(x) = x; D =... (answered by tutorcecilia)
Find (f-h)(-3) if f(x) = (x+1)^2; D = {Reals}, and h(x); D =... (answered by stanbon)
If g(x) = 2x - 3, D = {Reals}, and h(x) = x squared + 1, D = {Reals}, find: a) (g +... (answered by mukhopadhyay)
Given f(x) = 2x +3 and g(x) = x2 + 3x - 1, find... (answered by josgarithmetic)
If h (x)=1-5x and g(x)=x^2 - 3x , D= {reals}, then... (answered by MathLover1)
1) Given that f(x) = 55x + 22 and g(x) = x^3, find (f & g)(- 3). (answered by CubeyThePenguin,josgarithmetic)
3.Given that f(x) = 3x + 1, g(x) = x2 –2x - 6 , find (g o f)(-2) and f/g(0). (answered by robertb)
Given that f(x) = 10x + 1 and g(x) = x2 + 7x, find ( f o g )(4). (answered by Fombitz)