Question

The midpoint of a line segment with end points as (x, 4) and (-2, -2) is (2, 1). What is the value of x?

x = 6
x = 4
x = -3
x = -2

Answer 1

do you know the midpoint formula?

Answer 2

no i have no clue how to get the answer :(

Answer 3

wait is it x = 6?

Answer 4

the midpoint formula is: \(\huge (\frac{x_1+x_2}{2}, \frac{y1+y2}{2}) \)
where the endpoints are (x1, y1) and (x2, y2).
since the midpoint is given to you, you'll need to work backwards to get the x coordinate of one of the endpoints..