the points plotted below are on the graph of a polynomial. In what range of x-values must the polynomial have a root? Check that all apply.

A. -1.5 to -0.5
B. 0.5 to 1.5
C. 1.5 to 2.5
D. 2.5 to 3.5
E. 3.5 to 4.5
F. $.5 to 5.5

Here is the link:

http://media.apexlearning.com/Images/200708/27/d2ca7ea6-3734-422a-83eb-3a4264f92e10.gif

Question

the points plotted below are on the graph of a polynomial. In what range of x-values must the polynomial have a root? Check that all apply. 

A. -1.5 to -0.5 
B. 0.5 to 1.5 
C. 1.5 to 2.5 
D. 2.5 to 3.5 
E. 3.5 to 4.5 
F. $.5 to 5.5

Here is the link:

http://media.apexlearning.com/Images/200708/27/d2ca7ea6-3734-422a-83eb-3a4264f92e10.gif

jdoe0001 · Answer

a root is where the graph touches the x-axis
so what they're really asking is

"over the x-axis, from where to where is the graph touching the axis?"

anonymous · Answer

I dont understand