By substituting the value of x as 17 in the function R (x) = 2 x + 3.5, we get the value of R ( 17 ) as 37.5.
We are given a function:
R (x) = 2 x + 3.5
where x represents the number of feet the tide moves x minutes after 4 pm.
Now, we are asked to find R (17)
For this, we need to substitute the value of x as 17 that is we need to put x = 17 in the function that is given to us.
R ( x = 17 ) = 2 ( 17 ) + 3.5
R ( 17 ) = 34 + 3.5
R ( 17 ) =37.5
Therefore, by substituting the value of x as 17, we get the value of R ( 17 ) as 37.5.
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