Leslie analyzed the graph to determine if the function it represents is linear or non-linear. first she found three points on the graph to be (–1, –4), (0, -3), and (2, 5). next, she determined the rate of change between the points (–1, –4) and (0, -3) to be startfraction negative 3 minus (negative 4) over 0 minus (negative 1) endfraction = startfraction 1 over 1 endfraction = 1. and the rate of change between the points (0, -3) and (2, 5) to be startfraction 5 minus (negative 3) over 2 minus 0 endfraction = startfraction 8 over 2 endfraction = 4. finally, she concluded that since the rate of change is not constant, the function must be linear. why is leslie wrong?