Review set
Deciding the side an inequality allows
The questions ask you to place a boundary and then say which side the inequality permits, including constraints that have been multiplied through by a negative. Drawing the line comes back quickly; testing a point rather than trusting the inequality symbol is the habit these are here to keep.
What this involves
Retrieval after a delay, which is what makes knowledge durable.
Answers here count towards what the system knows about your skills.
What this covers
- Plot a linear inequality and identify its allowed side
Given one or more linear inequalities in two variables, the learner can draw each boundary line, determine which side the inequality allows by testing a point, and shade the set satisfying all of them together, including sign restrictions.