I don't completely understand the concept can someone help me?

Which graph shows a function with a range of all real numbers greater than or equal to -1

Statement: if two distinct planes intersect, then their intersection is a line. which geometry term does the statement represent? defined term postulate theorem undefined term

The distance around the lake is 2 kilometers. ifelena wants to run 14 kilometers this week, howmany laps must she run around the lake