One Atta Time Flash Cards Distance Learning Create New Sheet Select a Worksheet > Version 1 Version 2 Version 3 Version 4 Version 5 Version 6 Version 7 Version 8 Version 9 Version 10 Grab 'em All Identify Linear Functions (Graphs) 8f3 Decide whether a graph shows a linear function by checking if it makes a straight line.Tell the difference between linear and non-linear graphs by looking for curves or changing steepness.