Question

y = 1
step 1 of 2: determine the domain and range for the relation in interval notation.
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Explanation:

Step1: Identify the domain

The horizontal line $y=1$ extends infinitely left and right, so $x$ can take all real numbers. In interval notation, this is $(-\infty, \infty)$.

Step2: Identify the range

The line $y=1$ has a constant $y$-value of 1, so the only possible $y$-value is 1. In interval notation, this is $[1, 1]$.

Answer:

Domain: $(-\infty, \infty)$
Range: $[1, 1]$