Anthony and Susan are married filing jointly. Their combined income is currently $98,000. Both have received raises totaling $8,500. If the cut-off between the 25% and 28% tax bracket is $101,500, how much more will they pay in taxes?

dont know

step-by-step explanation:

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.