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The value of is
Explanation:
Given that the functions and
We need to determine the value of
The value of can be determined by substituting the value of
and
and simplifying the terms.
Thus, let us assign in the function
, we have,
Now, let us assign in the function
, we get,
Grouping the like terms, we have,
Adding the like terms, we get,
Hence, the value of is
Recall your d = rt, distance = rate * time.
now, if Roger can do 1 mile in 8 minutes, so in 1 minute, he has done then 1/8 of a mile, so his rate is 1/8 miles per minute.
if Jeff can do 1 mile in 6 minutes, he's faster, in 1 minute he has done 1/6 of a mile, so his rate is 1/6 miles per minute.
now, when Jeff catches up with Roger, the distance covered by both will be the same, say "d" miles, because, at that millisecond, Jeff will be neck and neck with Roger, and their covered distance will be the same.
now, Jeff is generous and let Roger roll on for 1 minute before him, so, by the time time Roger has covered "d" miles, he has been running for say "t" minutes.
however, since Jeff started later by 1 minute, he hasn't been running for "t" minutes, but for "t - 1" minutes.
now, if Roger can do 1 mile in 8 minutes, so in 1 minute, he has done then 1/8 of a mile, so his rate is 1/8 miles per minute.
if Jeff can do 1 mile in 6 minutes, he's faster, in 1 minute he has done 1/6 of a mile, so his rate is 1/6 miles per minute.
now, when Jeff catches up with Roger, the distance covered by both will be the same, say "d" miles, because, at that millisecond, Jeff will be neck and neck with Roger, and their covered distance will be the same.
now, Jeff is generous and let Roger roll on for 1 minute before him, so, by the time time Roger has covered "d" miles, he has been running for say "t" minutes.
however, since Jeff started later by 1 minute, he hasn't been running for "t" minutes, but for "t - 1" minutes.