Answer:
11.1
Step-by-step explanation:
Answer:
X = [-5 -1 2 1] - [-1 -2 4 8] = [-4 1 -2 -7]
Width = W
Length = 3 times w = 3W
Area = length x width = 3W * W = 3W^2
That looks like a translation; let's check. We have
A(-5,1), B(-3,7), A'(3,-1), B'(5,5)
If it's a translation by T(x,y) we'd have
A' = A + T
B' = B + T
so
T = A' - A = (3,-1) - (-5,1) = (8,-2)
and also
T = B' - B = (5, 5) - (-3, 7) = (8,-2)
They're the same so we've verified this transformation is a translation by (8,-2), eight right, two down.
The common ratio is 2:1, or dividing by 2
