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Locate the Critical Points

Tap the number line to place anchors where the expression equals zero.

Test the Energy Zones

Drag the scanner to a value in each zone to test if it's Positive (+) or Negative (-).

Filter the Results

Select the intervals that make the inequality true. Tap to toggle.

Rational Nodes

Drag the correct nodes onto the critical points.
Solid for zeros (numerator), Hollow for undefined (denominator).

Solid (Zero)
Hollow (Undef)

Mastered!

You've successfully analyzed polynomials, tested intervals, and decoded rational inequalities.