I tried to get the series of values of coordinate x and y by putting different values in t. I also plotted the graph, but I don't know how can I indicate the orientation of graph.
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Excellent question, Rames. It'd be better if you included the plotted graph too. But, anyway, the orientation of the graph means the direction in which the graph is going as the value of t increases. In this question, you can indicate the direction towards the upper left side of the graph.