QuestionFor the quadratic function $f(x)=x^{2}+2 x+1$, answer parts (a) through $(f)$. (a) Find the vertex and the axis of symmetry of the quadratic function, and determine whether the grap
The vertex is $(-1,0)$. (Type an ordered pair, using integers or fractions.) What is the equation of the axis of symmetry? The axis of symmetry is $x=-1$. (Use integers or fractions for any numbers in the equation.) Is the graph concave up or concave down? Concave down Concave up (b) Find the $y$-intercept and the $x$-intercepts, if any. Select the correct choice below and, if necessary, fi your choice. A. The $x$-intercept(s) is/are -1 . $\square$ (Type an integer or a simplified fraction. Use a comma to separate answers as needed.) B. There are no $x$-intercepts.
What is the $y$-intercept? Select the correct choice below and, if necessary, fill in the answer box to com A. The $y$-intercept is 1 . $\square$ (Type an integer or a simplifed fraction.) B. There is no y-intercept. (c) Use parts (a) and (b) to graph the function.
Use the graphing tool to graph the function. $\square$ (d) Find the domain and the range of the quadratic function.
The domain of $f$ is $\square$ 7. (Type your answer in interval notation.)