Question

The points plotted below are on the graph of a polynomial. How many roots of the polynomial lie between x = -4 and x = 3?
http://media.apexlearning.com/Images/200708/27/0560b2b3-4a77-46ee-b4aa-b7b8b62c0453.gif
A. 1
B. 2
C. 0
D. 3

Answer 1

@dtan5457

Answer 2

@FibonacciChick666

Answer 3

@TTP
@Nnesha
someone please help

Answer 4

So what does y= if an x value is a root?

Answer 5

the number between?

Answer 6

not quite, so anytime you hear root, think y=0. A root of a polynomial, is just where the function crosses over the x-axis. ie. y=0.

Answer 7

so, with a proper definition, does this make sense? If not, I have a nice video I can link you to

Answer 8

maybe a video might help.

Answer 9

cause im still kind of lost

Answer 10

BEFORE you watch the video, check out this quick synopsis on zeroes/roots of a function:
http://www.purplemath.com/modules/polyends2.htm

ok so this video and the following(on the website https://www.khanacademy.org/math/algebra2/polynomial_and_rational/factoring-higher-deg-polynomials/v/identifying-graph-based-on-roots ) are going to explain identification of graphs based on roots,

Answer 11

and how to find them?

Answer 12

well, once you understand what they are, this becomes really easy for graphs

Answer 13

so first, you just need to understand what they are

Answer 14

cause at this point with the online program im in im kinda far behind and have to get it done quick

Answer 15

this question isn't asking you to find them per say. it only wants to know how many there are

Answer 16

imma take a guess at 3

Answer 17

then you clearly did not do as I asked