Coach decaro records the cross country runners times compared to their personal times

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The answers are 20,30,80,180,960,890,1230,4560. on the first row

Hello!

the correct option is:

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

why?

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!

X- 2y = 6-2y = 6 - x2y = x - 6y = 0.5x - 3gradient is 0.5 or 1/2coordinates of y-intercept is (0,3)the answer is mc022-3.jpg as it shows a graph which has a positive gradient of 0.5 and cutting the y-axis at (0,3).