Looking for trustworthy answers? Westonci.ca is the ultimate Q&A platform where experts share their knowledge on various topics. Join our Q&A platform to connect with experts dedicated to providing precise answers to your questions in different areas. Join our platform to connect with experts ready to provide precise answers to your questions in different areas.

Suppose f(x)=x^2/x+4 Find each of the following and simplify as appropriate.
a) f(2)
b) f(3a)
c) the domain of f

Sagot :

DWRead

Answer:

Step-by-step explanation:

I think you mean f(x) = x^2/(x+4). The parentheses matter.

f(2) = 2²/(2+4) = 4/6 = ⅔

:::::

f(3a) = (3a)²/(3a+4) = 9a²/(3a+4)

:::::

x ≠ 4, because division by zero is undefined.

Domain of f in interval form: (-∞,4)U(4,∞)