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The answer is the last answer choice:
all the real numbers greater than or equal to -3

The range of a function is all the possible y values of a function. From the function you see on the left side, it shows that the minimum value is at (2, -3) and from there it doesn't go any lower meaning all the values will be higher than -3 for the y value.

The range of the above function is [-3,∞], or set of all the real numbers greater than or equal to three.

What is the range of a function y=f(x)?

The range is a set of elements representing the dependent variable y.

In a graph, to find range we need to look at the lowermost point and the uppermost point on the graph in the y-direction.

In the given graph,

The lowermost point lying on the graph in the y-direction is -3 while the uppermost point does not exist because function tends to infinity as x tends to infinity.

Therefore, the range of the above function is [-3,∞], or set of all the real numbers greater than or equal to three.

To get more about Range visit:

https://brainly.com/question/2264373