Question

the mid point of a(1,5) and B(-2,-1)​

Answer 1

$a(1 \: \: \: 5) \: \: \: \: b( - 2 \: \: - 1) \\ midpoint = ( \frac{ x1+ x2}{2 \: } \: and \: \frac{y1 + y2}{2} ) \\ = ( \frac{1 - 2}{2} \: and \: \frac{5 - 1}{2} ) \\ = (\frac{ - 1}{2} \: and \: \frac{4}{2} ) \\ = ( \frac{ - 1}{2} \: and \: 2)$