Which of the following must be true about b

In the xy-plane, the graph of the function f(x) = x2 + bx + 4 does not intersect the x-axis. Which of the following must be true about b?

  • A. −8 ≤ b < −4

  • B. b = −4

  • C.−4 < b < 4

  • D.b = 4

  • E. 4 < b â‰¤ 8

I would need a comprehensive explanation on how you arrived at your answer so I’ll know how to it the next time around. Thanks!

 
Do you need a similar assignment done for you from scratch? We have qualified writers to help you. We assure you an A+ quality paper that is free from plagiarism. Order now for an Amazing Discount!
Use Discount Code "Newclient" for a 15% Discount!

NB: We do not resell papers. Upon ordering, we do an original paper exclusively for you.