A quadratic function with leading coefficient $2$ has a repeated zero at $x=-3$. Write the function in vertex form.

The quadratic function is given in standard form: $y=x^2+2x+1$. Convert the function into vertex form.

The quadratic function is given in standard form: $y=x^2+2x+1$.Sketch the graph of the quadratic by using the vertex and two other points on the quadratic.

The quadratic function is given in standard form: $y=x^2-4x-2$. Convert the function into vertex form.

The quadratic function is given in standard form: $y=x^2-4x-2$.Sketch the graph of the quadratic by using the vertex and two other points on the quadratic.

The quadratic function is given in standard form: $y=3+6x+x^2$. Convert the function into vertex form.

The quadratic function is given in standard form: $y=3+6x+x^2$.Sketch the graph of the quadratic by using the vertex and two other points on the quadratic.

The quadratic function is given in standard form: $y=-x^2-6x+1$. Convert the function into vertex form.

The quadratic function is given in standard form: $y=-x^2-6x+1$.Sketch the graph of the quadratic by using the vertex and two other points on the quadratic.