Suppose that y varies directly as x
and y = -9 when x = 3. Find the
value of x when y = 18.

Tracy solved the following problem. which of the statements is true? 9 ÷ 3 + 6 × 2 3 + 6 × 2 9 × 2 18 her answer is correct. her answer is incorrect. she should have multiplied before dividing. her answer is incorrect. she should have multiplied before adding. her answer is incorrect. she should have added before dividing.

How many solutions does the nonlinear system of equations graphed bellow have?

Factor the polynomial by its greatest common monomial factor.