Question: For the quadratic function f(z) = z? + 4z 1, find the vertex and the x-intercept(s). Express the vertex as a coordinate pair. If there

For the quadratic function f(z) = z? + 4z 1, find the vertex and the x-intercept(s). Express the vertex as a coordinate pair. If there is more than one intercept, enter as a comma separated list of points. = vertex: E] help (points) = r-intercept(s): [j help (points)
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