What transformation is represented by the rule (x, y)→(x, −y)(x, y)→(x, −y) ?

Posted on 2016-09-23 18:49:00 in Math by RACHEL

Point B(6, −3)B(6, −3) is translated using the rule (x−5, y+9)(x−5, y+9). 

What is the y-coordinate of B'B' ? 

What transformation transforms (a, b)(a, b) to (a, −b)(a, −b)​? 

Point T(3, −8)T(3, −8) is reflected across the x-axis. 

Which statements about T'T' are true? 

A. the x coordinate is 3 
B. the y coordinate is -8 
D. the y coordinate is 8 
C. the x coordinate is -3

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