Write a word problem using 9 and 10 as factors. Write an equation to solve to problem

Multiplying an even number of negative numbers gives an answer that is choose from:

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.

Find the axis symmetry of x y=4x-6x+3