If I'm understanding this correctly you mean:
If a vertical line does not connect to more than one point in a relation then that relation is a function.
Then your answer is A-True.
That is called the vertical line test. The vertical line cannot touch more than one point at the same time if it is a function. If it does touch then it is not a function.
while excluding 0, the product and quotient is positive if operating between same sign, otherwise if we operating different sign will resulted negative.
(9x^2+8x)-(2x^2+3x)
9x^2+8x-2x^2-3x
7x^2+5x
It would be b because if you take 10 and shusbejsjdhebe
