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Answer:
In both cases, if the signs of the initial numbers are the same, the answer will be positive. If the signs are different, the answer will be negative
Step-by-step explanation:
Required
Signs of results of multiplication and division
If two non-zero numbers have the same sign, and they are multiplied together, the end result will be positive.
For instance:
2 and 4 are positive; so, 8 is positive
-2 and -4 are negative; so, 8 is positive
If two non-zero numbers have different signs, and they are multiplied together, the end result will be negative.
For instance:
-2 is negative, and 4 is positive; so, -8 is negative
2 is positive, and -4 is negative; so, -8 is negative
For a relation to be a function it must be 
relation is not a function.
In the above options, C is relation therefore cannot be a function.
The reason is that 3 alone maps onto -2 and 5, in the ordered pairs (3,-2) and (3,5). This disqualifies it from being a function.
Hence the graph of this relation will not pass the vertical line test
In the above options, C is
The reason is that 3 alone maps onto -2 and 5, in the ordered pairs (3,-2) and (3,5). This disqualifies it from being a function.
Hence the graph of this relation will not pass the vertical line test