Use Excel to complete the work as shown in class. This should include a textbox next to the table which has a clear, simple justification for how the Excel table proves that your conclusions are accurate based on calculus concepts.Find the critical numbers and absolute extrema for y=-3x2 on the interval 0.2,2.Type DNE if an answer does not exist. Round values to 4 places if necessary.Identify the critical number on the given closed interval, if it exists. If it doesn't exist, then you should type "DNE".x=The absolute maximum is at x=The absolute minimum is at x=