Step 1 First write the function in general form y ax2 bx c

Last updated: 6/21/2023

Step 1 First write the function in general form y ax2 bx c Since a O Step 3 y X 8 The vertex is a maximum point The vertex is a minimum point b 2a x Step 2 The coordinates of the vertex of a quadratic function of the form y ax2 bx care 2 Use the values of a and b to determine the x coordinate of the vertex 1 y 0 the parabola opens downward 2 1 8 4 1 8 downward So is the vertex a maximum or a minimum The x coordinate of the vertex is 4 Use that value in the equation to determine the y coordinate of the vertex ya f b f 4