Question

challenge #2.1
how could you summarize these points algebraically?
in other words, what equation would produce a line that passes through all of them?
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Explanation:

Step1: Identify line type

All points lie on a horizontal line. For horizontal lines, the y-value is constant across all x-values.

Step2: Find constant y-value

From the graph, every point has a y-coordinate of 4. The equation for a horizontal line is $y = k$, where $k$ is the constant y-value.

Answer:

$y = 4$