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2-26.
  1. Determine the domain and range of each of the following graphs. Homework Help ✎

    1. graph

    2. graph

    3. graph

    4. graph

To determine the range, locate the vertex of the parabola.

Domain: all real numbers
Range: y ≤ 1

See part (a).

See part (a).

See part (a).

Domain: all real numbers.
Range: y ≥ −1.