Alexis was keeping track of how much money she was spending online shopping. On Monday she spent $50. Tuesday she spent $65. Wednesday she spent $72. Thursday she spent $45. Friday she spent $48. Saturday she spent $110. She can't remember what she spent on Sunday, but she knows that the average of her spending for the week was $70. How much did she spend Sunday?

Step-by-step explanation:

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)