Answer:
B) 13√2
Explanation:
If we join the points to make a right triangle, the legs will have a distance of 7-(-6) = 13 and 9-(-4) = 13. To find the distance between the points, we have to find the hypotenuse. Luckily, there is a special case of right triangles in which if the legs are equal (let's call them a), the hypotenuse will be a√2. In this case, the answer will be 13√2. Hope this helps!