Review your skills for using the structure of expressions with some challenge problems.


A company's weekly profit, P, after time t (in weeks) is given by the equation:
P, equals, left parenthesis, t, minus, a, right parenthesis, start superscript, 2, end superscript, plus, b
Where a, comma, b, is greater than, 0.
Which of the following statements are true?
Select all that apply.
Select all that apply.