What is the constant of proportionality for the relationship between the number of cups of flour and the number of batches of cookies?
a.)0.25
b.)0.5
c.)2
d.)4

Lesson 9-3 for items 8-10, a square is drawn in the coordinate plane, with vertices as shown in the diagram. then the square is reflected across the x-axis. -2 4 8. the function that describes the reflection is (x, y) - a. (x, y-3). b. (x, y-6). c. (-x, y). d. (x,- y).