A large school district is interested in determining student attitudes about their co-curricula
offering such as athletics and fine arts. The district consists of students attending 4
elementary schools (2000 students), 1 middle school (1000 students), and 2 high schools
(2000 students). Describe how the administration could sample these students using:

x = 12

y = 15

step-by-step explanation:

d is the only accurate one

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.