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write an exponential equation of the form ab^x whose graph passes through the following points: (0,5) and (1,15)

 Jun 1, 2014

Best Answer 

 #2
avatar+129849 
+5

We have

y = ab  ....   and we need to find a and b

So, using (0,5)  we have

5 = ab0

5 = a

And using (1, 15), we have

15 = 5b1

15 = 5b     divide by 5 on both sides

b = 3        So our function is

y = (5)3x

 Jun 1, 2014
 #1
avatar+28 
+5

y=ab^x

let a=5 and b=3

y=5(3^x)  passes through points (0,5) &(1,15)

 

not sure if this is what you're looking for

 Jun 1, 2014
 #2
avatar+129849 
+5
Best Answer

We have

y = ab  ....   and we need to find a and b

So, using (0,5)  we have

5 = ab0

5 = a

And using (1, 15), we have

15 = 5b1

15 = 5b     divide by 5 on both sides

b = 3        So our function is

y = (5)3x

CPhill Jun 1, 2014

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