Figure 1.21 shows four lines given by equation y = b + mx. Match the lines to the conditions on the parameters m and b. (a) m > 0, b > 0 (b) m < 0, b > 0 (c) m > 0, b < 0 (d) m < 0, b < 0 l1 l2 l l3 4 x y Figure 1.21 1

Chapter2 v anatomisthesmallestquantityofmatterthatstillretainsthepropertiesofmatter v anelementisasubstancethatcannotbebrokendownin2ormoresubstancesbyany means v conceptofatomwasproposedbyvariousphiliopsersalongtimeago v 1808-JohnDaltonoutsforwardtheatomictheoryandtheconceptthatatomsare indivisible v atomsarenotindivisible-onceasingleatomwasobtaineddividingitintosmallerparticles...