When we talk about solving a system of equations what we're looking for is the combination of x and y that simultaneously make both equations ___??___.
Another way of saying that is it's the point ___??___
that lies on ___??
lines at the same time.

Fun fact

An apple, potato, and onion all taste the same if you eat them with your nose plugged

but there’s no any figure there!

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.