Lines r and 8 are parallel lines cut by transversal t. Which of the following can be used to prove that when a transversal crosses parallel lines, alternate interior angles are congruent?
24 23 and 2326; therefore 2426.
24/2 and 26: therefore 46.
2
4 3
5
241 and 126; therefore 4. 6.
ş
5 6
8 7
245 and/5 6: therefore4 6.
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What is the equation of the following graph in vertex form? parabolic function going down from the left through the point zero comma twelve and through the point two comma zero and turning at the point four comma negative four and going up through the point six comma zero and continuing towards infinity courtesy of texas instruments a: y = (x − 4)2 − 4 b: y = (x + 4)2 − 4 c: y = (x + 2)2 + 6 d: y = (x + 2)2 + 12

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