GCSE Maths OCR J560

Understand and use the symbols <, ⩽, >, ⩾

Solve linear inequalities in one variable, expressing solutions on a number line using the conventional notation.

e.g. $2x + 1 \geq 7$

mtaimg/images/sections/121/121-a-1.gif/mtaimg

$1 < 3x-5 \leq 10$

mtaimg/images/sections/121/121-a-2.gif/mtaimg

**Solve quadratic inequalities in one variable.

e.g. $x^2 - 2x < 3$

Express solutions in set notation.

e.g. $\{x : x \geq 3\}$

$\{x : 2 < x \leq 5\}$

bSee also Polynomial and exponential functions, 7.01c**

**Solve (several) linear inequalities in two variables, representing the solution set on a graph.

See also Straight line graphs, 7.02a**