If ground beef costs $4.99 per pound, what is the cost of 2 3/4 pounds?

a. $1.81
b. $11.48
c. $11.98
d. $13.73

2 x 4.99 = 9.98

3/4 x 4.99 = 3.7425 round it to 3.74

9.98 + 3.74 = 13.73

$13.73

Step-by-step explanation:

if the eqn of the parabola is f(x) = (x-4)(x+2), we need to mult. this out to find the coordinates of the vertex.

then f(x) = x^2 + 2x - 4x - 8, and f(x) = x^2 - 2x - 8.

one way in which you can find the vertex is to calculate x = -b / (2a).   here, that comes to

        )

x = = 1.   f(1) = 1^2 - 2(1) - 8 = - 9.   vertex is at (1, -9).

        2(1) 

find another point on the curve:   let x=0, for which y=-8.   then (0, -8) is on the curve.   plot the vertex and this point and draw a smooth parabola thru both.

hope this