1.

If the domain of f(x)=-|x|+2 " is " -1lexle3 f(x) has a minimum value when x equals

Answer»

-1
0
1
3

Solution :PLOT the graph of y`=|X|+2` in a [-1,3] by [-3,3] window. Examine the graph to see that its MINIMUM value is ACHIEVED when x=3.
An alternative solution is to realize that y is SMALLEST when x is largest because of the negative absolute value [11]


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