a parabola can be represented by the equation x2 = 2y.
what are the coordinates of the focus and the equation of
the directrix?
focus: (0,8); directrix: y=-8
focus: (0,1); directrix: y = -1
focus: (8,0); directix: x = -8
o focus: (.9); directrix x = -1
neeed ! asapp

Let us imagine that the number of automobile accidents in a certain region are related to the regional number of registered automobiles in tens of thousands (b1), alcoholic beverage sales in $10,000 (b2), and decrease in the price of gasoline in cents (b3). furthermore, imagine that the regression formula has been calculated as: y = a + b1x1 + b2x2 + b3x3 where y = the number of automobile accidents, a = 7.5, b1 = 3.5, b2 = 4.5, and b3 = 2.5 calculate the expected number of automobile accidents for a football weekend if the region has 25,000 registered vehicles, $75,000 worth of beer is sold, and a gas war causes a 10 cent drop in a gallon of gas.