select the correct answer. which function has an asymptote at x = 5 and an x - intercept of (6,0)?\na…

select the correct answer. which function has an asymptote at x = 5 and an x - intercept of (6,0)?\na. (f(x)=log(x - 5))\nb. (f(x)=log(x + 5))\nc. (f(x)=log x-5)\nd. (f(x)=log x + 5)

select the correct answer. which function has an asymptote at x = 5 and an x - intercept of (6,0)?\na. (f(x)=log(x - 5))\nb. (f(x)=log(x + 5))\nc. (f(x)=log x-5)\nd. (f(x)=log x + 5)

Answer

Explanation:

Step1: Recall vertical - asymptote property of logarithmic functions

For the function $y = \log(u)$, the vertical asymptote occurs when $u = 0$.

Step2: Check the vertical asymptote of option A

For $f(x)=\log(x - 5)$, set $x-5=0$, then $x = 5$ is the vertical asymptote.

Step3: Check the x - intercept of option A

To find the x - intercept, set $y = f(x)=0$. For $f(x)=\log(x - 5)=0$, since $\log1=0$, we have $x-5 = 1$, which gives $x=6$. So the x - intercept is $(6,0)$.

Step4: Check option B

For $f(x)=\log(x + 5)$, setting $x + 5=0$ gives $x=-5$ as the vertical asymptote, so it's not correct.

Step5: Check option C

For $f(x)=\log x-5$, the vertical asymptote is $x = 0$ (since for $y=\log x$, the asymptote is $x = 0$), so it's not correct.

Step6: Check option D

For $f(x)=\log x + 5$, the vertical asymptote is $x = 0$, so it's not correct.

Answer:

A. $f(x)=\log(x - 5)$