If the two at the end of these are exponents, like x^2, then these graphs would be reflections across the x-axis. Their graphs would be two parabolas. f(x) pointing up, and g(x) pointing down.
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The expression ( Fx^2 + 6x + 9 ) is quadratic if it is in the standard form ( ax^2 + bx + c ), where ( a ), ( b ), and ( c ) are constants, and ( a \neq 0 ). If ( F ) is not equal to zero, then the expression is indeed quadratic, as it contains the ( x^2 ) term. If ( F ) is zero, it would no longer be quadratic. Therefore, assuming ( F \neq 0 ), ( Fx^2 + 6x + 9 ) is a quadratic expression.