Choose a number greater than 8, substitute for y and solve: Solving an inequality 12+𝑦 >20 −12 −12 Check: 𝑦 >8 Choose a number greater than 8, substitute for y and solve: 12+10 >20 TRUE 22>20
Graphing the solution y >𝟖 5 6 7 8 9 10 11 12 13 14 15 Open circle on 8 means it does not include 8 Arrow points right to include all numbers greater than 8
Choose a number greater than 9, substitute for x and solve: Solving an inequality 8𝑥≥72 8 8 Check: 𝑥 ≥9 Choose a number greater than 9, substitute for x and solve: 8(10) ≥72 TRUE 80≥72
Choose a number greater than -5, substitute for t and solve: Solving an inequality −20𝑡≤ 100 −20 −20 Check: 𝑡 ≥ −5 Choose a number greater than -5, substitute for t and solve: 20 0 ≤100 TRUE 0≤100
Graphing the solution t ≥−𝟓 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 Closed circle on -5 means it does include -5 Arrow points right to include all numbers greater than -5