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Mathematics 8 Online
OpenStudy (anonymous):

PLEAS HELP!

OpenStudy (anonymous):

I need help with how to graph it and how to find the domain and range

OpenStudy (anonymous):

y=log2(x−3)+3 , is it a increasing function or a decreasing one ?

OpenStudy (anonymous):

I do not know

OpenStudy (anonymous):

OpenStudy (anonymous):

@precal can you help me?

OpenStudy (anonymous):

When x = 3, what is y ?

OpenStudy (anonymous):

1.584

OpenStudy (anonymous):

No, y should be -infinity as log 0 = -infinity. Right ?

OpenStudy (anonymous):

yup

OpenStudy (anonymous):

the equation is \[y=\log_{2} (x-3)x+3\]

OpenStudy (anonymous):

Now, when x = 5, what is y ?

OpenStudy (anonymous):

If i plug in i get 4

OpenStudy (anonymous):

Correct! What if x = infinity ?

OpenStudy (anonymous):

im guessing y is infinity

OpenStudy (anonymous):

Correct! What if x = 0?

OpenStudy (anonymous):

there isn't an answer

OpenStudy (anonymous):

Correct! And so you see log is an increasing function!

OpenStudy (anonymous):

ty

OpenStudy (anonymous):

Wait... Can you plot it now ?

OpenStudy (anonymous):

yes it was multiple choice

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