How do you solve and write the following in interval notation: #5-y>=4#?
2 Answers
Jun 23, 2017
Explanation:
#"subtract 5 from both sides"#
#cancel(5)cancel(-5)-y>= 4-5#
#rArr-y>= -1#
#"multiply through by - 1"#
#color(blue)"NOTE"# when multiplying/dividing by a negative quantity#color(red)"Reverse"# the inequality symbol.
#rArry<= 1larrcolor(red)" reverse symbol"#
#"in interval notation " (-oo,1]#
Jun 23, 2017
Solution:
Explanation:
Note: multiplying with negative on both sides will reverse the inequality sign.
Solution: