Find
a. any two different points whose sum is

b. any two different points in three dimensions whose sum is
000

c. any two different complex numbers and their sum will create the degenerate parallelogram.
d. any two different points in three dimensions and their sum lie on the same line
e. a point that is mapped to 1
−3
after multiplying −2
f. a point that is mapped to
12
−2
4
after multiplying −23

Iam trying to solve a linear equation for the shoe size of someone 84" tall taking into consideration example 1 is 69" tall with a shoe size of 9 and example 2 is 72 inches tall with a shoe size of 11. i understand that the equation should be y=mx+b and that on the graph the answer is (3,2) but i just don't understand how to create the equation to solve for 84-inches and 60-inches tall questions. after two days, i need .

What are the constants in this expression? -10.6+9/10+2/5m-2.4n+3m

If f(x) =3x-2 and g(x) =2x+1 fins (f+ g) (x)