Chapter 9 Quadratic Relations and Conic Sections - 9.1 Apply the Distance and Midpoint Formulas - 9.1 Exercises - Skill Practice - Page 617: 6

$$\left(-1,\:\frac{3}{2}\right)$$

Using the distance formula, we find: $$\sqrt{\left(5-\left(-7\right)\right)^2+\left(3-0\right)^2}\\ 3\sqrt{17}$$ Using the midpoint formula, we find: $$\left(\frac{5-7}{2},\:\frac{3+0}{2}\right)\\ \left(-1,\:\frac{3}{2}\right)$$