Dale wants to fill his water bottle between classes, but the water fountain next to his classroom is frustratingly slow. To get 2 ounces of water in his bottle, it takes Dale 6 seconds. To get 3 ounces in his bottle, it takes him 9 seconds. In this relationship, x represents the amount of water (in ounces) Dale puts in his water bottle, and y represents how long (in seconds) it takes to get that amount.
Graph two points for this relationship and the line passing through them.

Polygons efgh and e′f′g′h′ are shown on the coordinate grid: what set of transformations is performed on efgh to form e′f′g′h′? a. a translation 1 unit to the left followed by a 90-degree counterclockwise rotation about the origin b. a translation 1 unit to the right followed by a 90-degree counterclockwise rotation about the origin c. a 90-degree clockwise rotation about the origin followed by a translation 2 units to the right d. a 90-degree clockwise rotation about the origin followed by a translation 2 units to the left

If x is 6, then 7x= a. 13 b. 42 c. 42x d. 76

Aclassmate thinks that solving a system by graphing gives an exact answer when the lines appear to cross at a grid point, but only an approximate answer when they don't. explain why this isn't true.