destinydiamond6887
02.08.2019 •
Mathematics
Find the discriminant of the equation. (show how you got your answer) a. x^2 + 4x + 9 = 0
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Ответ:
Discriminant formula- b^2 - 4(a)(c)
Work:
4^2-4(1)(9) = -20
The formula for this is the part of the quadratic formula
Ответ:
9514 1404 393
8, 12
Step-by-step explanation:
The x-values of a function cannot repeat. That is, the x-values already in the table, {3, 6, 7, 9}, cannot be used again. Any added x-values must be different from these if your relation is to remain a function.
Of the choices offered, only 8 and 12 can be used for added x-values.