Is (4,-2) (5,-3), (6,-2), (7,-3) a function??? need answers quick pls(ᗒᗣᗕ)՞

Point $(x,y)$ is randomly picked from the rectangular region with vertices at $(0,,,2010),$ and $(0,2010)$. what is the probability that $x > 7y$? express your answer as a common fraction.

Determine the difference: 3.2 × 1010 – 1.1 × 1010. write your answer in scientific notation.

Give me the equations of two lines that have the same slope but are not parallel.