∆abc is reflected about the line y = -x to give ∆a'b'c' with vertices
a'(-1, 1), b'(-2, -1), c(-1, 0). what are the vertices of ∆abc?
i will only give the brainest to the correct answer.

An amusement park manager determined that about 23 of all customers would wait in long lines to ride the new roller coaster. which simulation could not be used to answer questions about whether a customer would wait?