Mai said, "I'm not sure the graph is right. For example, the point (10,3) is in the shaded region, but it's not realistic for an athlete to swim for 10 hours and bike for 3
hours in a training session! I think triathlon athletes generally train for no more than
2 hours a day."
a. Write an inequality to represent Mai's last statement.
b. Graph the solution set to your inequality.
c. Determine a possible combination of swimming and biking times that meet
both the distance and the time constraints in this situation.

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!