Answer
M = $(0.45,1.7)$
Work Step by Step
The coordinates (x, y) of the midpoint M are
$x = \frac{x_1+x_2}{2} = \frac{1.2+-0.3}{2} = 0.45$
$y = \frac{y_1+y_2}{2} = \frac{2.3+1.1}{2} = 1.7$
That is, M = $(0.45,1.7)$
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