f(x)=2−14+5x6x+5We want to find limx→−2f(x).What happens when we use direct substitution?Choose 1 answer:(A) The limit exists, and we found it!(B) The limit doesn't exist (probably an asymptote).(C) The result is indeterminate.
Q. f(x)=2−14+5x6x+5We want to find limx→−2f(x).What happens when we use direct substitution?Choose 1 answer:(A) The limit exists, and we found it!(B) The limit doesn't exist (probably an asymptote).(C) The result is indeterminate.
Substitute x with −2: Substitute x with −2 in the function f(x) to see if direct substitution is possible.f(x)=2−14+5x6x+5f(−2)=2−14+5(−2)6(−2)+5
Perform calculations after substitution: Perform the calculations inside the function after substitution.f(−2)=(−12+5)/(2−14−10)f(−2)=(−7)/(2−4)f(−2)=(−7)/(2−2)
Simplify the result of substitution: Simplify the result of the substitution to identify any issues.f(−2)=0−7We have a division by zero situation, which means the function is undefined at x=−2.
Determine behavior of the limit: Determine the behavior of the limit based on the result of direct substitution.Since we have a division by 0, the limit does not exist due to a potential vertical asymptote at x=−2.