11. identify the scale factor used to graph the
image below.
k=

Which graph represents the following piecewise defined function?

The perimeter of a movie screen is 54 meters. the screen is 18 meters wide. how tall is it?

Is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis.