at the beginning of the day the stock market goes up 60 1/2 points and stays at this level for most of the day. at the end of the day the stock market goes down 90 1/4 points from the high at the beginning of the day. what is the total change in the stock market from the beginning of the day to the end of the day?

1/4 and 8/3 because:

the reciprocal if 4 is 1/4 because 4 is used as 4/1 and the opposite of that is 1/4. the opposite of 3/8 is 8/3 so that is the answer.

80 the answer is 80

step-by-step explanation:

step-by-step explanation:

points a and b are equidistant from the desired line, so the line you find by using them will go through point r.

using points other than a and b will give the desired line only if they are equidistant from r. if they are randomly located, the perpendicular line you create will not necessarily go through point r, hence will not be a solution to the problem.