Which equation represents an exponential function that passes through the point (2, 80)?
2 answers:
Answer:
Step-by-step explanation:
Given that the exponential function passes through the point (2,80)
Since only one point is given there may be more than one exponential function satisfying this.
One of them we select here is with base 4 and coefficient 5.
i.e.
We can check whether (2,80) lies on it.
Substitute x=2 and y =80
Left side =80
Right side =
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Answer:
52 weeks
Step-by-step explanation:
The club starting with $270 (club 1) is increasing their bank balance each week by ...
... $280 -270 = $10
The club starting with $10 (club 2) is increasing their bank balance each week by ...
... $25 -10 = $15
Club 2 is gaining on Club 1 by $15 -10 = $5 each week. So, the initial difference of $270 -10 = $260 will be overcome in ...
... $260/($5/week) = 52 weeks
_____
The same result is shown in the attached graph, which also shows that both clubs' bank balances will be $790 at that time.
