When 2 pieces of rope are placed end to end the measure 40 meters in length. When the 2 pieces are laid side by side, one is 10
2 answers:
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<u>ANSWER</u>
<u>EXPLANATION</u>
To find the value of a function, f(x) at a given value x=a, we plug in x=a into f(x) to obtain f(a) in simplified form.
The first function is
To find f(7), we substitute x=7, into the function.
The second function is
To find f(4), we replace x with 4 to obtain,