Question

Plz help what are the coordinates

Answer 1

Answer:
(3,-4). (5,-4). (3,-7)

Explanation:
Pick one point and see how many squares it is from the line ‘x’ and go the other side of the line and count the same amount of squares and that is where your point will be. Do the same with the other points and you have your triangle

Answer 2

Answer: Refer to the diagram below

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Step-by-step explanation:

Let's focus on one point, say the point (3,3).

How far is this point from the vertical line x = -1? That would be 4 units. You can count the spaces or subtract with absolute value.

So to go from (3,3) to the mirror line, we move 4 spaces to the left. Then we'll move another 4 spaces to the left to arrive at the image point (-5,3). The x coordinate shifted over 8 spots but the y coordinate stays the same.

The point (3,6) moves in the exact same way, and the exact same set of distances. It will land on (-5,6).

The point (5,3) needs to move 6 spaces to the left to land on the mirror line. Then another 6 spaces to the left to get to (-7,3).

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To summarize:

• The point (3,3) moves to (-5,3)
• The point (3,6) moves to (-5,6)
• The point (5,3) moves to (-7,3)

Each time the y coordinate stays the same for any given point being moved. This makes the two triangles on the same horizontal level together.

Once again, refer to the diagram below for a visual summary. I used GeoGebra to make the drawing. It's a free online tool which I recommend for geometry students.