How would you explain to someone (in words and/or with pictures) why reflecting a shape across the y-axis changes one coordinate but not the other?

How is the equation of this circle written in standard form? x2 + y2 - 6x + 14y = 142 a) (x - 3)2 + (y + 7)2 = 200 b) (x+ 3)2 + (y - 7)2 = 200 (x - 6)2 + (y + 14)2 = 142 d) (x+6)2 + (y- 14)2 = 142

Will mark name all segments skew to bc

What are the coordinates of the image of p for a dilation with center (0, 0) and scale factor 2