Ten years ago the age of the father was four times of his son. Ten years hence the age of the father will be twice that of his s
on. The present ages of father & son are?
1 answer:
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We can solve this problem by seeing at which part both of the parts of the graphs of the function are discontinued. Both of the parts of the graph of the function are discontinued at -2, so we will have to find a function that has a value that is undefined for x = -2. We can do this using the denominator of the fraction that's in each of the functions. The function where x = -2 will cause it to be undefined is the third one, so the answer to this question is C., f (x) = 
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