Q. Point J is located at (−4,4).Select all of the following that are 4 units from point J.Choose all answers that apply:(A) x-axis(B) (−4,8)(C) y-axis
Distance Formula Application: To determine which options are 4 units away from point J, we need to consider the distance formula in a 2D coordinate system, which is d=(x2−x1)2+(y2−y1)2, where (x1,y1) is the original point and (x2,y2) is the point we're measuring the distance to. We will apply this formula to each option to see if the distance is 4 units.
Option A Calculation: For option A (x-axis), we need to find a point on the x-axis that is 4 units away from J. Since J is at (−4,4), a point on the x-axis that is 4 units away would have to be at (−4,0) because the y-coordinate would be 0 (on the x-axis) and 4 units away in the y-direction. Let's calculate the distance:d=(−4−(−4))2+(0−4)2d=(0)2+(−4)2d=0+16d=16d=4The x-axis is indeed 4 units away from point J at the specific point (−4,0).
Option B Calculation: For option B (−4,8), we will use the distance formula to find the distance from J to this point:d=(−4−(−4))2+(8−4)2d=(0)2+(4)2d=0+16d=16d=4The point (−4,8) is also 4 units away from point J.
Option C Calculation: For option C (y-axis), we need to find a point on the y-axis that is 4 units away from J. Since J is at (−4,4), a point on the y-axis that is 4 units away would have to be at (0,4) because the x-coordinate would be 0 (on the y-axis) and it would not be 4 units away in either direction since the y-coordinate is the same as J's. Therefore, the y-axis is not 4 units away from point J at any specific point.
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