Which of the following functions has its vertex below the x-axis? f(x)= x2 – 14x + 49
f(x) --2x
f(x) = x² – 8
f(x) = -(x + 3)2 + 1

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.

There are 15 plates and each plate is either 7 or 12 inches diameter. which systems of equations do you use to find the number of 7 inch plates, x and 12 inch plates, y

Sketch one cycle if the cosine function y=2cos2theta