In Problems 2226, (a) Graph each quadratic function by determining whether its graph is concave up or

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In Problems 22–26,


(a) Graph each quadratic function by determining whether its graph is concave up or concave down and by finding its vertex, axis of symmetry, y-intercept, and x-intercepts, if any.


(b) Determine the domain and the range of the function.


(c) Determine where the function is increasing and where it is decreasing.image

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