6. Quadratic Inequalities
Sign In
Start by identifying a, b, and c. The maximum value of the given quadratic function is f(-2ab).
Maximum Value: 25
Increasing Interval: To the left of x=-2
Decreasing Interval: To the right of x=-2
For a quadratic function f(x)=ax2+bx+c, the y-coordinate of the vertex is the maximum value of the function when a<0.
Let's simplify the equation of the given function to identify a, b, and c. We will multiply the binomials using the FOIL method. This method is a mnemonic device that reminds us to multiply the First, Outer, Inner, and Last terms of the binomials.