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anonymous
 one year ago
Need Help please, Medal + Fan:
Which equation represents an exponential function that passes through the point (2, 80)?
f(x) = 4(x)5
f(x) = 5(x)4
f(x) = 4(5)x
f(x) = 5(4)x
anonymous
 one year ago
Need Help please, Medal + Fan: Which equation represents an exponential function that passes through the point (2, 80)? f(x) = 4(x)5 f(x) = 5(x)4 f(x) = 4(5)x f(x) = 5(4)x

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mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Test the point in each equation and see which one works.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0How? could you explain please

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Also, an exponential function has the form \(\large f(x) = ab^x\) This alone will allow you to eliminate two answers.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1An exponential function has x as an exponent. What can you conclude about the first two choices?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0A and B cannot be correct

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Good. Now let's look at C and D.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Choice C Is this true? \(80 = 4 \cdot 5^2\) Choice D Or is this true? \(80 = 5 \cdot 4^2\)
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