Table 1: 300 270 240 210 180 150 +- 120 90 60 30 Table 2: 5] 61 10 12 14 Number of Hours Which graph shows a proportional relationship? What makes it a proportional relaftnship? 12 14 -1.5 1.5 4.5 7.5 10.5 To determine proportionaüty from a graph, nei.ermine which of the following tables represent proportional relationships, 10) -12 -15 x 3 5 Lesson Worksheet: Proportional and Nonproportional Relationships Mathematics • 7th Grade In this worksheet, we will practice recognizing ratios that are in proportion, finding an unknown term in a proportion, and identifying proportionality in real-world problems. the quantitative relationship between two variables – in other words, whether the variables are directly proportional, inversely proportional, not related at all, or something else entirely. When we construct a graph, we plot the independent variable – the variable that the experimenter controls – on The flow is proportional to the absolute inlet pressure, so the flow in scfm would equal the C v flow coefficient if the inlet pressure were reduced to 2 psia and the outlet were connected to a vacuum with less than 1 psi absolute pressure (1.0 scfm when C v = 1.0, 2 psia input).