Question 252013
Can you please help me with this:
f(x) = 2x+3 if x<4
       X^2-1 if 4&#8804; x &#8804;10 
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You have posted the description of the function.
But you have not posted the problem.
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IF the problem is f(3)=?
then f(3) = 2(3)+3 = 9 because 3 is less than 4
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IF the problem is f(5) = ?
then f(5) = 5^2-1 = 24 because 4<= 5 < 10
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Cheers,
Stan H.