How do you find the vertex of f(x) = (x + 3)² ?
Vertex form of a quadratic function is f(x) = a(x - h)² + k
The vertex has coordinates of (h,k) In f(x) = (x + 3)² Since 3 is positive, that means the value of h is -3. To make +3, it would have to be x - (-3), in vertex form. The value of k is, of course, 0. Vertex has coordinates of (-3,0) {as you see in the graph below}
0 Comments
Your comment will be posted after it is approved.
Leave a Reply. |
Examples
All
|