Answer:
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The A’ is your reflected shape. The red line is y=-1, or your line right reflection. To solve, I counted the distance from the red line on the original triangle, and then the same on the opposite side of the red line, and counted the same distance, plotting the points at the final spot.
90 cards in total and 30 in each stack
Answer:
y2-y1/x2-x1 or rise/run
Step-by-step explanation:
I learned this in algebra