IN order to answer this you need to know the distance formula. The distance formula is: [tex]d= \sqrt{(x_2-x_1)^2+(y_2-y_1)^2} [/tex] So now you need to plug in your variables. So it would look like this:[tex]d= \sqrt{(-4-15)^2+(2-6)^2} [/tex] Then solve for d. [tex]d= \sqrt{361+16} [/tex][tex]d= \sqrt{377} [/tex][tex]d=19.41[/tex] I hope this helps!