SOLUTION: 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?
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Question 1132682: 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?
Found 2 solutions by ankor@dixie-net.com, MathTherapy:
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
In the xy-plane, the graph of the function
f(x)=x^2+bx+4
does not intersect the x-axis. Which of the following must be true about b?
:
Using the rules of the discriminant b^2 - 4ac < than 0, no real solutions
therefore
b^2 < (4*1*4)
b^2 < 16,
-4 > b < +4 will not intersect the x axis
Answer by MathTherapy(10556) (Show Source): You can put this solution on YOUR website!
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?
ALL of THEM are TRUE!!
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