Solve linear and quadratic equations, simultaneous systems and linear inequalities, and show each solution correctly on a number line.
4 free units in this chapter
A linear equation has one solution: the single value that makes both sides balance.
About 3 minA quadratic equation can have two solutions, and factorising is your first tool in Grade 10.
About 3 minTwo unknowns need two equations. Solving them finds the point where both conditions are true at once.
About 3 minAn inequality has a range of solutions rather than a single value, so the answer is an interval.
About 3 min