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ABC is dilated by a scale factor of 3 to form A'B' point O is the center of dilation, and point O lies on AB. If the slope of AB is 3, what can be said about line A'B'?

Question

Will follow and give metal for solving this

ABC is dilated by a scale factor of 3 to form A'B' point O is the center of dilation, and point O lies on AB. If the slope of AB is 3, what can be said about line A'B'?

anonymous · Answer

The slope of ab  is 6, but ab  does not pass through O.
The slope of ab  is 9, and  ab passes through O.
The slope of ab  is 9, but ab  does not pass through O.
The slope of ab  is 3, and ab  passes through O.
The slope of  ab is 3, but  ab does not pass through O.