Which of the symbols correctly relates the two numbers below? Check all that apply. 25 ? 35
2 answers:
You might be interested in
OK, the relation. (2,9), (2,8), (-3,7) (-3,6)
Since 2 maps to two values, as does -3, this relation is not a function.
~~~~~~~~~~~~~
By the way these points, in this slightly different order,
(2,9), (2,8), (-3,7) (-3,6)
are the vertices of a parallelogram.
( - 10, - 22 )
using the midpoint formula,
let the other endpoint have coordinates (x, y) then
(2 + x ) = - 4 ( multiply through by 2 )
2 + x = - 8 ( subtract 2 from both sides ) then
x = -8 - 2 = - 10 ← value of x-coordinate
Similarly for y-coordinate
(8 + y ) = - 7 ( multiply through by 2 )
8 + y = - 14 ( subtract 8 from both sides )
y = - 14 - 8 = - 22 ← y -coordinate
the other endpoint is ( - 10, - 22 )