[填空题]
The following diagram shows partaklh1 d:6e3bz of zgdaoi /mx sso.mp+: g.u5j- /the graph of a quadratic function f.
The vertex is at point $ \mathrm{A}$ and the x -intercepts are at points $\mathrm{B} $ and $\mathrm{C}$ . The function f can be written in the form $ f(x)=(x-h)^{2}+k$ .
1. Write down the values of h and k .
The function f can also be written in the form f(x)=(x+p)(x-q) .h = k =
2. Write down the values of p and q . p = q =
3. Find the y -intercept of the graph of f .
