Which equation represents a graph with a vertex at (1, -6)? A. y=3x2+6x–3
B. y=3x2-6x-3
C. y=3x2-8x-1
D. y=3x2-3x-6

Which of the following is most likely the next step in the series? a3z, b6y, c9x, d12w, е15v, f18u

Three times the sum of a number and seven is negative thirty-six. what is the number?

Find the exact value of each of the following. in each case, show your work and explain the steps you take to find the value. (a) sin 17π/6 (b) tan 13π/4 (c) sec 11π/3