Help with what and what grade
Answer:
-3 sorry if you get it wrong
Answer:
the answer is c
mark me brainiest plz
Step-by-step explanation:
9514 1404 393
Answer:
b = (-5, 2)
Step-by-step explanation:
b = 2m - a = 2(1, -1) -(7, -4) = (2-7, -2+4)
b = (-5, 2)
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<em>About the formula</em>
The midpoint is given by the formula ...
m = (a+b)/2
Solving for b gives ...
b = 2m -a . . . as above