The coordinates of point A are 30 units of X and 70 units of Y.The coordinates of point B are 28 units of X and 76 units of Y.With X on the horizontal axis and Y on the vertical axis,the slope of the line between points A and B is
A) + 3.00
B) + 0.67
C) + 0.33
D) - 3.00
E) - 0.33

Question

Quizplus · Accepted Answer

The slope between two points can be found using the formula:

slope = (change in y) / (change in x)

In this case, the change in y is 76 - 70 = 6, and the change in x is 28 - 30 = -2 (note that we use subtraction in the reverse order for x because we're moving from right to left).

Thus,

slope = (6) / (-2) = -3

Therefore, the answer is D, -3.

The Coordinates of Point a Are 30 Units of X