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@chris00 thanks I won't be able to complete pressed for time
did you plot the points?
can you guys explain all the answers for me please
to reflect across the y-axis each point (x, y) goes to (-x, y)
congruent means same compare the lengths and angles
do you know how to calculate scale factors @nuccioreggie
scale factor is the ratio of the sides from
you can pick any point to determine the scale factor
scale factor = new image/ old image
So for Part A?
P'(1, −2) (new image) old image P(3, −6))
um uhhh i sthat for part A?
you can choose the x or y-coordindate to solve for it
scale factor = 1/3
ok can you explain the answer for part A in 1 comment please
i just did...
ohhhh lol im so sorrry so scale factor = 1/3 is the answer
a) scale factor = new image/old image Pick a point, so P. P is the old image. P' is the new image. to determine the scale factor we can either use the corresponding x co-ordinate or y-coorindates. using the co-ordinates P'(1, −2) (new image) old image P(3, −6)) therefore using x co-orindate scale factor = P'/P = 1/3 or using y co-orindate scale factor = P'/P = -2/-6=1/3 therefore scale factor = 1/3 we can see this seems right because the new image is smaller than the old image
wow lol yea thanks so what about B and C?
if we want to reflect it in the y axis, |dw:1444397999471:dw|
as triciall said each point (x, y) goes to (-x, y)
oh ok so what will the answer for letter B will be?
Triangle P'Q'R' has vertices P'(1, −2), Q'(0, 3), and R'(−1, 0). Therefore, P"Q"R" have verticies P''(-1,-2) Q'' (0,3) R''(1,0)
ok soooo i get that the answer for C?
B) since y-reflection means each point (x, y) goes to (-x, y) Therefore, Triangle P'Q'R' has vertices P'(1, −2), Q'(0, 3), and R'(−1, 0). Therefore, P"Q"R" have verticies P''(-1,-2) Q'' (0,3) R''(1,0)
the diagram is used for C
CAN YOU PUT THE ANSWER FOR c in word please?
C) Triangles are congruent when they have exactly the same three sides and exactly the same three angles So no triangles PQR and P''Q''R'' are not congruent
i think i get a fan after that ahah
can you help me with like 2more questions?
sorry, i have to go to sleep. its past midnight >.<