You offered a television set is for sale at 13,499 pesos in cash or an installment term, 2,500 pesos each month for the next 6 months at 9% compounded monthly. If you were to buy the item, what would you prefer, cash or installment? ​

the height of the surface increases from the center out to the sides of the road.

step-by-step explanation:

as we move out we move away from the x-axis.

and as mentioned in the problem statement that height of a road increases when we move away from the center x.

hence proved that 3rd option

the height of the surface increases from the center out to the sides of the road.

is the correct option.