I think the answer is A i’m sorry if it’s wrong i’m not for sure.
9 if your in k12 this is the answer trust me i just took the test
You can download
the answer here
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I would guess they're referring to some general form first<span>f(x)=alog(x−h)+k</span>Where 'h' represents horizontal shifts, 'k' vertical shifts and 'a' stretches the function. "a" will also reflect the function across the x-axis if the value is negative. But NOT across the y-axis. I hope that's the place they wanted to put the a at least