What i need to prove is that a+b+c = 180

If abcde is reflected over the x-axis and then translated 3 units left, what are the new coordinates d? are he re

If a and −a are numbers on the number line, which expression must give the distance between them? a) 0 b) a c) |2a| d) |a|

The graph of a quadratic function has a maximum at point (0, 5). the graph contains the point (2, 1). what is another point on the graph?