What is the slope of the line of best-fit in the scatterplot below? On a graph, a trend line goes through points (3, 12) and (6, 19).
StartFraction 9 Over 27 EndFraction
StartFraction 3 Over 7 EndFraction
StartFraction 7 Over 3 EndFraction
StartFraction 27 Over 9 EndFraction

cross multiplying, we get :

⇒ (3) × (5) = (9) × (x)

⇒ 15 = 9x

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.

4932,9180,7625 are divisible by 9