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Lesechka [4]
3 years ago
5

the coordinates of a quadrilateral are (5,8), (7,10), (9,12) and (11,14). after a transformation, the sign of the x-coordinate a

nd the sign of the y- coordinate for each ordered pair have changed. which type of transformation occurred?
Mathematics
2 answers:
adelina 88 [10]3 years ago
8 0

Answer:

a reflect across x=y

Step-by-step explanation:

-Dominant- [34]3 years ago
5 0

I know the answer but I don’t know how to word this correctly. But the coordinates went from the first quadrant to the third quadrant. Meaning that the coordinates either reflected over the y-axis then over the x-axis, or the coordinates reflected over the x-axis then over the y-axis.

Hope this helps!

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almond37 [142]

Answer:

a) ∠EAB = 180° - 90° - 30° = 60°

∠EBA = 180° - 90° - 60° = 30°

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∠EBA ≅ ∠DAC, ∠EAB ≅ ∠DCA, ∠AEB ≅ ∠CDA

ΔEBA ≅ ΔDAC because of the AAA postulate

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cos ∠DAC = AD/CA     (cos 30°)  AD = (0.8660)CA

sin ∠DAC = CD/CA      (sin 30°)   CD = (0.5)CA

ED = EA + AD

ED = (0.5)AB + (0.8660)CA

since AB = CA,  ED = 1.366CA

since EB = (0.8660)AB and AB = CA, then EB = 0.866CA

since CD = 0.5CA,

EB  + CD = 0.866CA + 0.5CA = 1.366CA

EB + CD = 1.366CA

1.366CA = 1.366CA

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