Use graph paper and a straightedge to draw the figure. the set of points (–1, 2), (5, 2), (5, –4), and (–1, –4) identifies the vertices of a quadrilateral. which is the most specific description of the figure the points form?

What is the axis of symmetry of the function f(x)=-(x+ 9)(x-21)

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.

Gabrielle's age is two times mikhail's age. the sum of their ages is 84. what is mikhail's age?