Rational number are natural numbers? always sometimes never

Is the following relation a function? x y 1 4 −1 −2 3 10 5 16 yes no

This week, conrad will work 1 3/4 times longer than last week. giovanni will work 1 1/3 times longer than last week. sally will work 2/3 the number of hours she worked last week. match each employee's name to the number of hours he or she will work this week

Alogical argument that is presented in graphical form using boxes and arrows is called?