Identify the terms and like terms in the expression. 1.) 9x - 5x so would you switch the numbers to additive inverse, so the terms are 9x and -5x, and the like terms are 9x and -5x?

Identify reflection rule on a coordinate plane that verifies that triangle a(-1,7), b(6,5), c(-2,2) and a’(-1,-7), b(6,-5), c’(-2,2) triangle are congruent when reflected over the x-axis