The vertex of this parabola is at (2,-4). Which of the following could be its equation?
10
HH
-10
4e
(2,-4)
10+
O A. *= 2(y-4)2 + 2
B. y = 2(x - 2)2 + 4
c. x = 2(y + 4)2 + 2
D. y = 2(x - 2)2 - 4

Cumulative examcumulative exam active13time remaining02: 44: 18the graph represents the data cost for monthly internetservice for a cell phone. which function, c(x), represents the monthly cost in dollarsin terms of x, the number of gigabytes used in a month? cell phone internet service(15,5x + 10150,0sx522 < x < 664x115, osx< 25x + 20, 2< x< 650, 65815%,monthly cost (s)20x + 5| 50x,0 < x < 22 < x < 664x( 15x, osx< 2c(x) = 5x + 10, 2< x< 6150x, 65 x5+1234 5 6 7 8 9 10 11 12gigabytes used

The mean of 10 values is 19. if further 5 values areincluded the mean becomes 20. what is the meanthese five additional values? a) 10b) 15c) 11d) 22

An 18% discount on a watch saved a shopper $72. find the price of the watch before the discount