Answer:
[tex](6,17)[/tex]
Step-by-step explanation:
we know that
In this problem
The gate hinges must be placed at the mid-point of the fence.
The formula to calculate the midpoint between two points is
[tex]M(\frac{x1+x2}{2},\frac{y1+y2}{2})[/tex]
we have
[tex]A(4,12),B(8,22)[/tex]
substitute the values in the formula
[tex]M(\frac{4+8}{2},\frac{12+22}{2})[/tex]
[tex]M(6,17)[/tex]