The standard form of the equation of a parabola is x = y2 - 4y + 20. what is the vertex form of the equation? a. x = (y - 4)2 + 12 b. x = (y - 2)2 + 16 c. x = (y - 2)2 + 4 d. x = (y - 4)2 + 4

Suppose there is a simple index of three stocks, stock abc, stock xyz, and stock qrs. stock abc opens on day 1 with 4000 shares at $3.15 per share. stock xyz opens on day 1 with 5000 shares at $4.30 per share. stock qrs opens on day 1 with 6000 shares at $4.60 per share. the price of stock abc on day 8 begins at $3.50. the price of stock xyz on day 8 begins at $3.90. stock qrs opens on day 8 with a price of $4.50 per share. assume that each stock has the same number of shares that it opened with on day 1. what is the rate of change of this simple index over 1 week?

Which value of c would make he following expression completely factored? 8x+cy

Find the quotient. 50a2 – 98b2 -5a +7b