2.1 Warmup Solution

Problem

1. Given the equation , find the values of y when x = 0 and x = -2.



2. Given the function , find the values of x that give a real number value for y.

Solution

1. When x = 0, y = 0+3 = 3.
   
   When x = -2,
   
2. A real or non-imaginary value for y means we cannot have any negative values under the square root. We can take the square root of the number zero, so we get a real value for y when

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