One end of a line segment has coordinates (9,13). If the midpoint of the line segment is
(-6,2), what are coordinates of the other
endpoint?

(-21,-9)

Step-by-step explanation:

let other point be x2,y2

then apply mid point formula

x=(x1+x2)/2

y=(y1+y2)/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.

this excerpt is taken from the book “we shall not be moved : the women’s factory strike of 1909 “ and is written by joan dash. it is the story of the great strike when almost 30thousand women working in factories in america formed a union to fight unsafe working conditions, long working hours and miserable wages.

question: which best states the author’s purpose for including this information in the text?

answer: to challenge the reader’s ideas about a historical event