A retailer has an account for 20000 from a manufacturer who gives 2 months credit but offer cash discount of 5 % prompt payment the retailer borrows 20000 from his bank at 9% per annul for 2 months and pays promptly to secure the cash discount how much does he gain by this transaction.

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)