Which of the following relationships represents a function? A.
(-5,4), (5,6), (-5,3), (9,2)
B.
(-5,0), (5,3), (-1,1), (5,5)
C.
(-5,4), (5,2), (-1,1), (9,2)
D.
(-5,4), (5,6), (5,3), (9,2)

what graph

step-by-step explanation:

-4, -2, 1, 4

step-by-step explanation:

domain = x values

range = y values

see below

step-by-step explanation:

x+2> 6

subtract 2 from each side

x+2-2 > 6-2

x > 4

there is an open circle at 4 since is it is greater than and the line goes to the right

the correct option is:

b. a value of the variable that makes the polynomial equal to zero.

the root or roots of a polynomial are the values of the variable that makes the polynomial equal to 0. we can find the roots of a polynomial making the expression equal to 0 and then, isolating the variable (it it has just one variable).

for example, given the following polynomial:

the root or zero of the polynomial, can be found by making the expression equal to 0, and then, isolating the variable, so, finding the root we have:

therefore, we have that the root of the polynomial is equal to 2.

we must remember that the number of roots that a polynomial can have, will depend on the degree of the polynomial, a first degree polynomial have will have one single root, a second degree polynomial (quadratic expression) may have two roots and so.

hence the correct option is:

b. a value of the variable that makes the polynomial equal to zero.

have a nice day!