Question

has an endpoint at (25, -5) and a midpoint of (18, -1). What is the value of the x-coordinate of the other endpoint?

Im not sure how to solve this

Answer 1

hint: \[\frac{x_1 + x_2}{2} = m_x\]
you are given x_1 as 25 and m_x as 18

so solve for x_2

does that help?

Answer 2

btw m_x means x coordinate of the midpoint

Answer 3

oh okay thanx!

Answer 4

welcome ^_^

Answer 5

so it would be 11?

Answer 6

\[\frac{25 + x_2}{2} = 18\]
\[25 + x_2 = 36\]
\[x_2 = 36 - 25\]
\[x_2 = 11\]
you are right :)

Answer 7

Thank you so much :)

Answer 8

welcome ^_^