Question

Does the quadratic functionf(x) = 4x2 – 12x + 9 have one,two, or no real zeros? Utilize thequadratic formula to determinethe answer[?] real zero(s)-b Vb2 - 4acRemember the quadratic formula: x =

Answer 1

SOLUTION

Step1: Write out the equation

$y=-2x^2-4x+2$

Compare the equation with the general form of a quadratic equation

$\begin{gathered} y=ax^2+bx+c \\ \text{then } \\ a=-2,b=-4,c=2 \end{gathered}$

Step2 Write out the quadratic formula

$x=\frac{-b\pm\sqrt[]{b^2-4ac}}{2a}$

Step3: Substitute the parameters in step1