Answer:
<h2>( 6 , 7 )</h2>
Step-by-step explanation:
The midpoint M of two endpoints of a line segment can be found by using the formula

From the question we have

We have the final answer as
<h3>( 6 , 7 )</h3>
Hope this helps you
D.) Dependent variable is "<span>instantaneous velocity" as it gives information of velocity at every second
Hope this helps!</span>
I think its r=I+7 because that would be the equation