Which statement is true about the result of a rigid transformation?

Factor the expression using the gcf. the expression 21m−49n factored using the gcf

This is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 5 terms.

Use the drop-down menus to complete the statements to match the information shown by the graph.