The graph shows the price charged by a company to make international phone calls from the united states. Based on the graph what does the slope of the line represent? A-Each call costs 3 cents per minute.
B-Each call costs 5 cents per minute.
C-Each call costs 15 cents per minute.
D-Each call costs 20 cents per minute.

14

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.