Quadratic in Form Polynomials — Cumulative exam Answers

If (x – 5) is a factor of f(x), which of the following must be true?

Using the quadratic formula to solve 11x2 – 4x = 1, what are the values of x?

Which expression shows the sum of the polynomials with like terms grouped together?

Which graph shows a function with a range of all real numbers greater than or equal to –1?

During a baseball game, a player hits a ball while a bird is flying across the field. Let t be the time in seconds since the ball is hit and h be the height in feet. The height of the baseball over time is modeled by the equation h = –16t2 + 65t and the height of a bird over time is modeled by the equation h = 8t + 20. What do the intersection points of the equations represent?

Which expression is equivalent to (4 + 6i)2?

A 47-foot-long piece of pipe is to be cut into three pieces. The second piece is three times as long as the first piece, and the third piece is two feet more than five times the length of the first piece. What is the length of the longest piece?