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2. Give your own example of a function using a set of at least 4 ordered pairs. The DOMAIN will be any four integers between 0 and +10. The RANGE will be any four integers between -12 and 5. Example of function f(x) = -2x Domain value Range value X=0 f(0) = y = -2(0) = 0 X=1 f(1) = y = -2(1) = -2 X=2 f(2) = y = -2(2) = -4 X=3 f(3) = y = -2(3) = -6 The four pairs are (0,0) (1,-2) (2,-4) and (3,-6) 3.Explain why your example models a function. It is a model of straight line function with a slope of negative 2. It means the relations between the x and y values are by a multiple of -2. 4. Give your own example of at least 4 ordered pairs that DOES NOT model a function. The DOMAIN will be any four integers between 0 and +10. The RANGE will be any four integers between -12 and +5. To form a non function, we can make four arbitrary points and make sure no relation can be formed. The four pairs are (0,0) (1,-5) (2,-3) and (3,0) 5. Explain why your example DOES NOT model a function. From the above four points, the lines are zig-zag and there is no relation between x and y values.