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A line contains the point (4, 5) and has a slope of −2. Which point is also on the line?

A. (4, 1)
B. (6, 2)
C. (5, 3)
D. (5, 7)

User Belek
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1 Answer

5 votes

Final answer:

The correct answer is option B, which is the point (6, 2). This point follows the pattern of the slope -2 for a line that already includes the point (4, 5).

Step-by-step explanation:

The correct answer is option B, which is the point (6, 2). A line that contains the point (4, 5) with a slope of -2 means that for every 1 unit the line moves horizontally to the right, it goes down by 2 units vertically. To determine if a point is on this line, you can start at (4, 5) and apply the slope to find another point.

Moving 2 units to the right (from 4 to 6 on the x-axis), the line should move 2 units times 2 vertically (4 units down), which would bring us from 5 to 1 (5 - 4 = 1). However, option B states that the y-coordinate is 2, which means it moved 3 units down instead of 4, indicating that there's an error in understanding the slope movement. The correct vertical movement from 5 (original y-coordinate) with the slope of -2 when moving 2 units to the right (x increasing by 2), should indeed bring the y-coordinate to 5 - (2 * 2), which is 1. Options A, C, and D do not match this pattern and are therefore incorrect.

User Stukennedy
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