Joanie believes that you cannot use cross products to solve the proportion for x. she says that if you multiply both sides of the equation by x, you get then, if you multiply both sides of the equation by 3, you get, which is a different equation than you would get if you cross multiplied. what mistake did joanie make in her reasoning?

The graph of the function f(x) = (x + 2)(x + 6) is shown below. which statement about the function is true? the function is positive for all real values of x where x > –4. the function is negative for all real values of x where –6 < x < –2. the function is positive for all real values of x where x < –6 or x > –3. the function is negative for all real values of x where x < –2.