Exercise 1 Page 193

Every inequality has an inequality symbol and values or expressions on either side of this symbol. In this exercise, we have the phrase greater than or equal to, so we can identify that the inequality symbol should be ≥. all real numbersy ≥ 12To find the expression on the left-hand side of the inequality sign, we substitute the information that comes before the phrase greater than or equal to. In this case, we are given all real numbers y. all real numbersy y For the right-hand side of the inequality symbol, we should substitute the information given that comes after greater than or equal to, which is 12. We get the following inequality. & all real numbers y greater than or equal to 12 & y ≥ 12