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Determine domain and range from graph

Determine domain and range from graph-example-1
Determine domain and range from graph-example-1
Determine domain and range from graph-example-2
User Alexander Matusiak
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3.1k points

1 Answer

25 votes
25 votes

Domain: (-∞,∞)

Range: (-∞,-3]

Explanation:

A quadratic equation graphs a parabola. Therefore there will be arrows on the bottom of the graph as it will go down forever. The domain (min x-values to max x-values) is

(-∞,∞) because the graph keeps on going down and to the right and left. The range (min y-values to max y-values) is (-∞,-3] because the lowest y-value the graph goes to is -∞ nd the highest y-value is -3.

User Gene
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2.9k points