Select the correct answer.
the director of a museum recorded the number of students and adult chaperones in several school groups visiting the museum. she organized
the data in a scatter plot, where x represents the number of students and y represents the number of adult chaperones. then she used a
graphing tool to find the equation of the line of best fit:
y = 0.123x + 5.397
based on the line of best fit, approximately how many students are predicted to be in a school group with 20 adult chaperones?
oa 8
b. 119
c. 157
d. 206
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x = 2

step-by-step explanation:

if sr parallel to ba then the sides bc and ac are in proportion, that is

= ← substitute values

= ( cross- multiply )

27x = 6(4x + 1)

27x = 24x + 6 ( subtract 24x from both sides )

3x = 6 ( divide both sides by 3 )

x = 2

the area of the rectangle is 35units^2.

step-by-step explanation:

graph it and find the distance.

it is a 5*7 rectangle.

therefore the area is 35units^2.

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.