Item 17 the amount of chlorine in a swimming pool varies directly with the volume of water. the pool has 2.5 milligrams of chlorine per liter of water. there are  8000 gallons of water in the swimming pool. how much chlorine is in the pool? round to the nearest thousand milligrams.

x=-2

infinite number of lines, so there is an infinite number of equations.

step-by-step explanation:

there are an infinite number of line that passes through the point (-2,5)

x=-2   is one line that passes through the point

y = 5 is another line that passes through the point

(these two lines are perpendicular to each other).

since the number of   numbers are infinite and the slope is the ratio of two numbers,(change in y over change in x) we can have an infinite number of slopes.     our only condition is that it passes through the point (-2,5)