How to find the vertex of the trinomial - 16x^2+60x+16?

The vertex of the trinonial a^2 + bx + c is - b/2a

-b/2a = - 60/2 (-16) = - 60/-32 = 60/32 = 30/16 = 15/8

Plug in 15/8 into the equation and find what the y-value is.

The vertex is: (1.875, 72.25)