sjsmith21
17.01.2020 •
Mathematics
Rafael has 1 black, 3 red, 7 green, 2 blue, and 2 yellow candies in his pocket.
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Ответ:
C. b2 – 4ac = 4
Step-by-step explanation:
The graph is possible for
Step-by-step explanation:
we know that
The discriminant of a quadratic equation of the form
is equal to
If D=0 the quadratic equation has only one real solution
If D>0 the quadratic equation has two real solutions
If D<0 the quadratic equation has no real solution (complex solutions)
In this problem , looking at the graph, the quadratic equation has two real solutions (the solutions are the x-intercepts)
so
therefore
The graph is possible for
b^2 – 4ac = 4