Graph the inequality x < -4/5

See the diagram below.

There is an open hole at -4/5 and shading to the left

This visually describes any value that is smaller than -4/5 as stuff to the left is smaller than stuff to the right. The value -4/5 itself is not part of the solution set because we don't have "or equal to" as part of the inequality sign.

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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.