How do you find the domain and range of y = 3x + 10?

1 Answer
MathFact-orials.blogspot.com
Feb 9, 2017

Domain and Range are valid for all real numbers.

Explanation:

Let's first see that the equation y=3x+10 describes a line:

graph{3x+10 [-32.47, 32.48, -16.24, 16.23]}

The domain refers to the list of allowable x values. For this equation, all x values are allowed, and so we can say the domain is valid for all real numbers.

The range refers to the list of all resulting y values. Just as all values of x are valid, so too are all values of y.

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