Question

If the midpoint between (18, y) and (20, -15) is (19, -5), find the value of y.

Answer 1

can anyone help me with this question..?

Answer 2

to find mid point we use this
lets take mid point(X,Y). and end points as (x1,y1) and (x2,y2)

Answer 3

and X =(x1+x2)/2 and Y =(y1+y2)/2

Answer 4

so am i working with (20,-15) and (19,-5) right now?

Answer 5

end points are (20,-15) and (18 ,y ). here x1= 20 , x2 =18 ,y1= -15 ,y2 = y
and X =19 and Y= -5 solve the rest your self

Answer 6

please someone help me in the question made by me which u can see in the question's list

Answer 7

math.science if ur not here to help then stop writing in this section

Answer 8

sorry

Answer 9

but I really need help, I am gonna fail in tomorrow's test

Answer 10

mid point of x= (x1+x2)/2=(18+20)/2=19
mid point of y= (y1+y2)/2=(y1-15)/2=-5

Answer 11

yea i got that, but is there more to go?

Answer 12

sorry i just dont understand how to get y

Answer 13

y-15=-5*2

Answer 14

that would be -10

Answer 15

y=-5*2+15

Answer 16

this not y you need to take the -15 to the other side

Answer 17

y=-10+15=5

Answer 18

so y = 5

Answer 19

yes

Answer 20

ok thanks :)