The Linear Case The PDF of ax +b in terms of the PDF X. -2 -1 23 9 In this figure:a =2 and b =5.The Linear Case ◼ The PDF of 𝑎𝑋 + 𝑏 in terms of the PDF 𝑋. In this figure: 𝑎 = 2 and 𝑏 = 5