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ButterflyHope
 one year ago
Urgent *WILL MEDAL!*: Which function represents exponential growth?
y=9/7(2/3)^x
y=4/5(4/5)^x
y=2.3(3/2)^x
y=4.1(5/6)^x
Thanks! :)
ButterflyHope
 one year ago
Urgent *WILL MEDAL!*: Which function represents exponential growth? y=9/7(2/3)^x y=4/5(4/5)^x y=2.3(3/2)^x y=4.1(5/6)^x Thanks! :)

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jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1Rule: \[\Large y = a*b^x\] has exponential growth only if b > 1

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1For example, \[\Large y = 2*1.7^x\] represents growth because b = 1.7 which is larger than 1

ButterflyHope
 one year ago
Best ResponseYou've already chosen the best response.0Ohhh I get it but none of them are greater than 1??

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1convert each of the fractions to decimal form that should help

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1ex: 9/7 = 1.29 2/3 = 0.67 y=9/7(2/3)^x turns into y = 1.29*0.67^x the base for x is 0.67 which is NOT greater than 1, so it is NOT a growth function. It's actually decaying So A is out

ButterflyHope
 one year ago
Best ResponseYou've already chosen the best response.0It's C because 3/2 = 1.5?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.11.5 = 1+r solve for r to get r = 0.5 since r = 0.5 = 50%, we have 50% growth here

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1you're welcome
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