Question

What are the coordinates of the vertex of the function f(x) = x² - 12x + 5?

O (6, 31)
O (-6, 31)
O (6,-31)
O(-69-31)

Answer 1

C, (6,-31)

Explanation:

Using the knowledge that the x coordinate of the vertex of a quadratic function in ax^2+bx+c terms is -b/2a, you can plug in -(-12)/2(1)=6 which you can then plug into the equation to find the y coordinate.