Is the equation a linear function or nonlinear function?

Nonlinear function

Step-by-step explanation:

To know - linear vs nonlinear

[] A linear function is a straight line. Examples such as y=3x + 3 or y= -4x + 1

[] A nonlinear function is not a straight line. This is usually because it contains exponents.

[] Since the function has a square root, and there are two answers for each square root problem, this is not a linear function.

-> See attached for the actual graph

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- Heather

x² + 11x + 18 < 0  

[-11 ± sqrt(121 - 72)]/2 = (-11 ± 7)/2  

solution: (-9, -2)

step-by-step explanation: