Suzie determined the range of a quadratic function to be y ? –5. Choose the correct interval notation.

Question

asked Feb 5, 2019 740 views

2 Answers

Cyrus The Great · Answer 1 · 2019-02-09T07:23:59+0000

I am not sure which symbol you meant to include so will do all four of them:

y > -5 --------> (-5, ∞)

y ≥ -5 --------> [-5, ∞)

y < -5 --------> (-∞, -5)

y ≤ -5 --------> (-∞, -5]

The PARENTHESIS is used when the number is NOT included (open dot).

The BRACKET is used when the number IS included (closed dot).