Say true or false:
$- 3$ is a zero of $y^{2} + y - 6.$

True

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False

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Solution

The correct option is A True
Let $f (y) = y^{2} + y - 6$ .
We know, if $- 3$ is zero of $f (y)$ ,
then $f (- 3)$ must be $0$ .
Thus,
$f (- 3) = y^{2} + y - 6$
$= - 3^{2} + (- 3) - 6$
$= 0$ .

Therefore, the statement is true.

Hence, option $A$ is correct.

Suggest Corrections

Similar questions

y = 4, - 2, - 3

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