I need help with this can someone please help ASAP

With #! i’ve tried to figure it out but i can’t.

Plzzz i beg u so much asaaaap ! what is the slope of this line? enter your answer in the box.

In right ∆abc shown below, the midpoint of hypotenuse ac is located at d and segment bd is drawn.if ab = 12 and bc = 16, then explain why bd = 10. hint: consider what you know about the diagonals of a rectangle.