189k views
4 votes
What are the coordinates of point R on PQ that is 3/4 the distance from P to Q, given that the endpoints of PQ are -4,6 and 8,-6?

a) (2,0)
b) (4,-3)
c) (6,-6)
d) (0,3)

1 Answer

1 vote

Final answer:

The coordinates of point R on line segment PQ are calculated to be (5, -3) based on the formula for partitioning a line segment in a ratio of 3:1. However, this result is not listed among the given options.

Step-by-step explanation:

To find the coordinates of point R that is 3/4 the distance from P to Q, we can use the concept of partitioning a line segment in a given ratio, which in this case is 3:1. Here, P is given by the coordinates (-4,6) and Q by (8,-6).

To find the x-coordinate of R, we use the formula:

x_R = (1 - t)x_P + t*x_Q

Where t is the fraction of the distance from point P to Q, which is 3/4 in this instance. Plugging in the values gives us:

x_R = (1 - 3/4)(-4) + (3/4)(8) = (1/4)(-4) + 6 = -1 + 6 = 5

Similarly, to find the y-coordinate of R:

y_R = (1 - 3/4)y_P + t*y_Q

y_R = (1/4)(6) + (3/4)(-6) = 1.5 - 4.5 = -3

Therefore, the coordinates of point R are (5, -3), which is not given in any of the options. Hence, the correct coordinates seem to be missing from the options provided.

User AbrahamJP
by
8.8k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories