The practice questions that I don't know are (yes...it's very elementary)

- What is the relationship between the length of a square and the area of a square (options are linear, proportional, or neither)?

The area of two squares is proportional to the squares of their sides. For example, square A has side = 2 and area 4; square B has side 3 and area 9.

- What is the relationship between the E and m in the equation E=mc2?

E varies directly as

E is directly proportional to m; e increases as m increases.

- What is the relationship between the elevation at sea level and an elevator?

None that I know of.

These are just a few of the practice problems and if I can answers these, i should do well on the proportions/linear part of the exam. Thanks ahead of time.[/quote]