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Which of the following functions are continuous for all real numbers?

g(x)=ln(x)

f(x)=(1)/(x)
Choose 1 answer:
A) 
g only
(B) 
f only
(C) Both 
g and 
f
D Neither 
g nor 
f

Which of the following functions are continuous for all real numbers?\newlineg(x)=ln(x) g(x)=\ln (x) \newlinef(x)=1x f(x)=\frac{1}{x} \newlineChoose 11 answer:\newlineA) g g only\newline(B) f f only\newline(C) Both g g and f f \newlineD Neither g g nor f f

Full solution

Q. Which of the following functions are continuous for all real numbers?\newlineg(x)=ln(x) g(x)=\ln (x) \newlinef(x)=1x f(x)=\frac{1}{x} \newlineChoose 11 answer:\newlineA) g g only\newline(B) f f only\newline(C) Both g g and f f \newlineD Neither g g nor f f
  1. Consider the domain: To determine if g(x)=ln(x)g(x) = \ln(x) is continuous for all real numbers, we need to consider the domain of the natural logarithm function.
  2. Natural logarithm function: The natural logarithm function ln(x)\ln(x) is defined only for x > 0. Therefore, g(x)=ln(x)g(x) = \ln(x) is not continuous for all real numbers because it is not defined for x0x \leq 0.
  3. Consider the domain: To determine if f(x)=1xf(x) = \frac{1}{x} is continuous for all real numbers, we need to consider the domain of the reciprocal function.
  4. Reciprocal function: The function f(x)=1xf(x) = \frac{1}{x} is defined for all real numbers except x=0x = 0, where the function has a vertical asymptote and is not defined.
  5. Neither g nor f: Since neither g(x)=ln(x)g(x) = \ln(x) nor f(x)=1xf(x) = \frac{1}{x} is continuous for all real numbers, the correct answer is D) Neither gg nor ff.

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