1 What do you call a relation where each element in the domain is related to only one value in the range by some rules? A. Function C. domain B. range D. independent variable 2. Which of the following real-life relationships represent a function? A. The rule which assigns to each person the name if his aunt. B. The rule which assigns to each person the name of his father C. The rule which assigns to each cellular phone unit to its phone number. D. The rule which assigns to each person a name of his pet. 3. A person is earning P500.00 per day for doing a certain job. Which of the following expresses the total salary S as a function of the number n of days that the person works? A. Sn=500+n C. Sn=500n D. B. Sn= 500/n Sn=500-n 4. Find the function value given hx=7x-11 i x=8m+3 A. 56m+10 c. 56m2+10 D. B. 56m-10 56m210 5. For what values of x can we not evaluate the function fx=frac 3x+7x2-4 ± 4 ± 3 _ ± 1 ± 2 6. Given fa=2a+1 and ga=3a-3 ,Find fa+ga A. 5a-2 C. -2a+1 D. B. -5a+2 -6a-1 7. Giver gx=6x-7 and fx=5x-1 ,find ghx A. -9x+11 C、 30x+13 B. 9x2+4x D. 30x-13 8. If fx= square root of x+6 and kx=9-x , find jk-1 A. 9- square root of 5 C. 16 B. square root of 14 D. 4