Write an equation of the line using function notation. Horizontal; through (0,-2)
Mathematics · College · Mon Jan 18 2021
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Answer: A horizontal line means that the y-value is constant for all points on the line. Since the line goes through the point (0, -2), this constant y-value is -2. In function notation, where we write the equation as f(x) = something, the equation of this horizontal line is:
f(x) = -2
This equation tells us that no matter what x-value we have, the value of the function f(x), which corresponds to the y-value, is always -2.