Q. \#3y′(2,−4) is the image of y after a translation along the rule (x,y)→(x−4,y−3). What are the coordinates of pre-image y ?
Reverse Translation Rule: To find the pre-image coordinates, we need to reverse the translation rule. The translation rule given is (x,y)→(x−4,y−3). To reverse this, we add 4 to the x-coordinate and add 3 to the y-coordinate of the image point.
Calculate Original X-coordinate: The image point is y′(2,−4). To find the pre-image y, we calculate the original x-coordinate by adding 4 to the image's x-coordinate: 2+4.
Calculate Original Y-coordinate: The calculation for the x-coordinate of the pre-image is 2+4=6.
Calculate Pre-image Coordinates: Next, we calculate the original y-coordinate by adding 3 to the image's y-coordinate: −4+3.
Calculate Pre-image Coordinates: Next, we calculate the original y-coordinate by adding 3 to the image's y-coordinate: −4+3.The calculation for the y-coordinate of the pre-image is −4+3=−1.
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