What is the equation of the parabola that has its vertex at (8,-1) and a y-intercept of (0.-17)?
OA) y= -1/4(x - 8)2 - 1
OB) y= -1/4(X + 8)2 - 1
C) y=1/4(x - 3)2 - 1
OD) y=-1/4(x - 8)2 + 1

Aparticular telephone number is used to receive both voice calls and fax messages. suppose that 25% of the incoming calls involve fax messages, and consider a sample of 25 incoming calls. (a) what is the expected number of calls among the 25 that involve a fax message?

Y+ 2/y is it a polynomial in one variable or not? and if so, why?

Arecipe calls for 3 ounces of flour for every 2 ounces of sugar. find the constant of proportionality.