$\"\"$

The quadratic function is $\"\"$ .

Rewrite the quadratic function $\"\"$ .

Compare the above quadratic function with $\"\"$ , then $\"\"$ .

The vertex of the function is $\"\"$ and axis symmetry is $\"\"$ .

Since $\"\"$ , the graph opens down and has the same shape as the graph of $\"\"$ ,

but it is translated 3 units left. $\"\"$

The vertex of the quadratic function is $\"\"$ , axis symmetry is $\"\"$ and

the graph opens down and translated 3 units left.