Question

Select the quadratic function which reveals the minimum or maximum value of f(x) without changing the form of the function. f(x) = 4(x - 7)(x + 2) f(x) = 3(x – 8)2 + 1 f(x) = -2x2 + 5x - 17 f(x) = x2 + 9x - 5x - 1ill send a picture of the question

Answer 1

The maximum or minimum of a quadratic function is also its y-value in the vertex. You can identify it in a quadratic funcion written is vertex form:

`f(x)=a(x-h)^2+k`

The k is the maximum or minimum value.

For the given functions the one that reveals the minimum or maximum value is:

`f(x)=3(x-8)^2+1`

Maximum or minimum value: 1