100 points to the first person who answers! Describe the key features of the graph of the quadratic function:
f(x) = -5x2 + 5.

A. Does the parabola open up or down?
B. Is the vertex a minimum or a maximum?
C. Identify the axis of symmetry, vertex, and the y-intercept of the parabola.

A.

Step-by-step explanation:

. Store Prices The owner of a grocery store finds that,

on average, the store can sell 872 gallons of milk per

week when the price per gallon is $1.98. When the price

per gallon is $1.75, sales average 1125 gallons a week.

Assume that the number N of gallons sold per week is

a linear function of the price P per gallon.

(a) Find a formula that gives N as a function of P.

(b) If the price per gallon is $1.64, how many gallons

should the store owner expect to sell per week?

(c) To sell 1400 gallons per week, what price should

Step-by-step explanation:

answer: the resulting cross section is a rectangle. solution: a plane parallel to the base of a triangular prism will intersect a cross section that is the same shape as its bases. so the cross section is a triangle.

step-by-step explanation: