1.

Let X={2,3,4,5} and Y={7,9,11,13,15,17}. Define a relation f from X to Y by: f={(x,y):xϵX, yϵY and y=2x+3} (i) Write f in roster form. (ii) Find dom(f) and range (f). (iii) Show that f is a function from X to Y.

Answer»

Let X={2,3,4,5} and Y={7,9,11,13,15,17}. Define a relation f from X to Y by:
f={(x,y):xϵX, yϵY and y=2x+3}

(i) Write f in roster form.

(ii) Find dom(f) and range (f).

(iii) Show that f is a function from X to Y.



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