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Mathematics 19 Online
OpenStudy (anonymous):

5. The vertices of a triangle are P(–4, 1), Q(–2, –8), and R(8, –1). Name the vertices of the image reflected across the x-axis. (1 point) P'(–4, –1), Q'(–2, 8), R' (8, 1) P'(4, –1), Q'(2, 8), R'(–8, 1) P'(4, 1), Q'(2, 8), R'(–8, –1) P'(–4, 1), Q'(–2, –8), R'(8, –1)

OpenStudy (anonymous):

reflecting a point across the x axis means treating the x axis like a mirror. A point with y-value "up 2 from the x-axis will reflect below the axis to remain 2 positions away, but it will become y value of "2 down from the x-axis". So a point like (0,2) reflects to become (0,-2)

OpenStudy (anonymous):

first one is the answer

OpenStudy (anonymous):

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OpenStudy (anonymous):

I suppose if you just wanted answers and didn't want to understand the topic, you are in good shape. Let me know if you need more explanation of what it means to "reflect a point."

OpenStudy (anonymous):

thanx!(:

OpenStudy (anonymous):

So the first one is the answer????????

OpenStudy (anonymous):

yes, notice... each y value in the answer # 1 is the negative, or reflection, of the same point's y value in the problem. In other words, P(-4,1) reflects to become P ' (-4, -1)... its x value doesn't change, but it's y value reflects from 1 to become -1

OpenStudy (anonymous):

ok thankyou!!!!(;

OpenStudy (anonymous):

happy to help :)

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