Afamily went to a baseball game. they parked the car in a parking lot which charged $20. the cost per ticket was $28. write an equation for the total cost of going to the baseball game, where y is the total cost and x is the total number of people. if the family spent $188, how many people went to the game?

6 people went to the game.

28×6=188 if you include the cost of parking, which is 20.

a) y = 28x + 20

b) Plug in 188 for y and solve algebraically:

188 = 28x +20

subtract 20 from both sides

168 = 28x

divide 28 from both sides

6 = x

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!