Construct a table of values for -4_<×_<4 & then draw a graph from this tableon a grahp paper. From the graph estimate (i) The value of y, when x=1.5 & (ii) The value of x, when y = 1.2

so, did you draw the graph?

Font problems in my browser caused your function to be garbled. Try typing it in, rather than copy/paste.