QUICK What is the equation of the following graph in vertex form?
(0,5)
(2, 1)
Courtesy of Texas Instruments
Oy = (x - 2)2 + 1
Oy = (x - 1)2 + 2
Oy = (x + 2)2 + 1
Oy = (x + 2)2 - 1

Asap! i'm not good math and i'm lost.

According to the general equation for conditional probability if p(anb)=3/7 and p(b)=7/8 what is p(a i b)

Titus works at a hotel. part of his job is to keep the complimentary pitcher of water at least half full and always with ice. when he starts his shift, the water level shows 4 gallons, or 128 cups of water. as the shift progresses, he records the level of the water every 10 minutes. after 2 hours, he uses a regression calculator to compute an equation for the decrease in water. his equation is w –0.414t + 129.549, where t is the number of minutes and w is the level of water. according to the equation, after about how many minutes would the water level be less than or equal to 64 cups?