How do you find the absolute max and min for #f(x) = 5 + 2x# on [-2,1]?

1 Answer
Aug 23, 2015

Answer:

Typically you would take the derivative and solve for the zeros, but in this case, your graph is linear, so one side is the max, #(1,7)# and the other is the min, #(-2,1)#.

Explanation:

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The above graph shows the plot of the function. I've highlighted the area between #-2# and #1#. Just by looking at the graph, you can see that the function is linear, and #x=1# is the clear max and #x=-2# the min.