The ordered pairs below show the number of gallons of gas used, x, and the number of miles traveled, y, for a compact car.

(7,224),(8,264),(9,279),(10,350)

if the data is modeled with the linear best fit function, approximately how many gallons of gas will be used by the car when it travels 400 miles?

a. 10.3
b. 11.6
c. 12.8
d. 14.3

the 4th choice is the correct one

step-by-step explanation:

answer: h

step-by-step explanation:

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!