Explanation:
If the distance between point Q and point P is 6 1/2 units, Q can be 6 1/2 units to the right of P or Q can be 6 1/2 units to the left of P.
So, we will find both options and compare them to the answer options to know which one is correct.
If Q is 6 1/2 units to the right of P, we can find Q adding 6 1/2 to the coordinate of P, so the coordinate for Q, in this case, will be:
[tex]Q=P+6\frac{1}{2}=-4+6+\frac{1}{2}=2+\frac{1}{2}=2\frac{1}{2}[/tex]Remember that 6 1/2 is equivalent to 6 + 1/2 and 2 + 1/2 is equivalent to 2 1/2.
In the same way, if Q is 6 1/2 units to the left of P, we need to subtract 6 1/2 to the coordinate of P. So, the coordinate of Q can also be:
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