Find the slope of the line through each pair of points.
1) (-13, 15).(-7, 12)
2) (-8, -8), (0.-20)
3) (-3, 3), (-11, -11)
4) (-11, 8), (-8, 3)
5) (16, 19), (-14, -18)
6) (-17,-10), (3, 17)

Radii ok and nl are perpendicular to om because of the radius-tangent theorem. by definition of perpendicular, angles kom and lnm are right angles. this means that triangles kom and lnm are right triangles. angle lmn is common to both right triangles, so by the triangles kom and lnm are similar.

Select all of the quadrants that the parabola whose equation is y=√x-4 (principal square root) occupies. i ii iii iv

Atorch and a battery cost 2.50 altogether.the torch costs 1.50 more than the battery.what fraction of the total price is the torch? give your answer in its simplest form.