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Mathematics 21 Online
OpenStudy (zab505):

Which facts are true for the graph of the function below? Check all that apply. A. It is increasing. B. It is decreasing. C. The x-intercept is (1, 0). D. The range of F(x) is y > 0. E. The domain of F(x) is x > 0. F. The y-intercept is (0, 1).

OpenStudy (zab505):

OpenStudy (zab505):

@Hero

hero (hero):

Review properties of exponential functions: http://tutorial.math.lamar.edu/Classes/Alg/ExpFunctions.aspx Hint: Three of the given answer choices are correct.

OpenStudy (zab505):

I believe B&F but don't know last one it could be A

OpenStudy (zab505):

Wait E?

hero (hero):

You must understand the properties of an exponential function. Otherwise, you'll be guessing. Try to ask yourself the following questions: "What properties would an exponential function have?" "What properties can an exponential function NOT have?"

OpenStudy (zab505):

Im lost

hero (hero):

Have you at least tried graphing the function? If not, use this: http://www.desmos.com

OpenStudy (zab505):

I did through Desmos I think B and F and I don't know the other?

hero (hero):

B and F is correct. There's only one more to figure out.

OpenStudy (zab505):

I'd say A or D but not sure?

OpenStudy (zab505):

I'd say 80% D

hero (hero):

D is 100% correct, not 80%. You already selected that the F(x) is a decreasing function, so it can't be A.

OpenStudy (zab505):

Wow don't know what I was thinking, Thank you so much!

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