1.) Johnny and Alex went on a fishing trip and caught 31 fish. Johnny caught one less than
1 answer:
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<u>What do we know so far</u>:
in
⇒
in
*we converted the number of laps into improper fractions
<u>We want to know the number of laps in an hour</u>
⇒ so we must find the rate which ⇒ lap/hour
<u>So William can run</u> ⇒ <u>10 laps in one hour</u>
Hope that helps!
Given:
The graph of an exponential function.
To find:
The function in the form of .
Solution:
The general form of an exponential function is
...(i)
From the given graph it is clear that the function passes through the points (0,4) and (1,7). It means these points will satisfy the function.
For x=0 and f(x)=4,
For x=1 and f(x)=7,
Putting a=4, we get
Substitute a=4 and in (i).
Therefore, the required exponential function is .