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What is the range of the function on the graph?

Help me please quick

What is the range of the function on the graph? Help me please quick-example-1
User Quxflux
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Answer: D) all real numbers greater than or equal to -3

In other words, it's any number that is -3 or larger.

This is because the lowest point occurs when y = -3. We can have y output values that are this or larger. The range is the set of all possible y outputs of a function.

To write the range in interval notation, we write
[-3, \infty) where the square bracket says "include the endpoint". It's effectively representing the interval
-3 \le y < \infty

User Emoacht
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