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The partition formula (x,y) = (x1 + k * (x2 - x1), y1 + k * (y2 - y1)), where k = part to whole, can be used to find the point. If line AB is partitioned in a 1/4 ratio, where A(-2,1) is the starting point and B(4,-3) is the endpoint, what is the x value of the point of partition?

A) 0
B) 1
C) 2
D) 3

1 Answer

5 votes

Final answer:

Using the partition formula with a 1/4 ratio between points A(-2,1) and B(4,-3), the calculated x-coordinate of the partition point is -0.5, which does not match any of the provided multiple-choice options. There may be a mistake in the question or the process.

Step-by-step explanation:

The question involves using the partition formula to determine the point that divides a segment into a given ratio. Here, line AB is partitioned at a ratio of 1/4 with A(-2,1) and B(4,-3). To find the x value of the partition point, we employ the formula (x, y) = (x1 + k * (x2 - x1), y1 + k * (y2 - y1)), where k is the part-to-whole ratio, which is 1/4 in this case.

To find the x-coordinate of the partition point, we plug in the values and calculate:

  • x1 = -2 (x-coordinate of A)
  • x2 = 4 (x-coordinate of B)
  • k = 1/4 (part-to-whole ratio)

Then the formula gives us:

x = -2 + (1/4) * (4 - (-2))
x = -2 + (1/4) * 6
x = -2 + 1.5
x = -0.5

However, -0.5 is not one of the answer options, so there seems to be a mistake in the process or the question as asked does not match with the provided options. The correct approach with the given values and method would result in an x-coordinate not listed in the options A) 0 B) 1 C) 2 D) 3.

User Jason Irwin
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