Stephanie spends 6 hours 45 minutes in school each day. Her lunch period is 40 minutes , and she spends a total of 20 minutes switching rooms between classes. The rest of the time Stephanie spends in her four classes that are the same length of time. How long is each class?

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)