What value of x makes the function {(1,5), (x,8), (-7,9)} a function?
1 answer:
X can be anything you want as long as it is not 1 or -7. If you have repeated x values with different y values, then it won't be a function.
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Any with an odd number of minus signs.
Perhaps the 1st and 4th, if I read it right.
The answer to this question is B
+ 12 - 4 + 3 - 15
= 12 + 3 - 4 - 15
= 15 - 19
= - 4
D .............................
