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Grade: 11
        
If c>0, 4a+c
the root of the equation 
f(x)=ax^2 -bx +c=0,
lie in which interval.
3 years ago

Answers : (1)

Vikas TU
10558 Points
							
That depends on the options provided.
Or U need to tell more. this data is insufficient.
.
At this point it is given that c is positive and f(2) is less than 0.
Hence, the graph would be passing through the intecept c and a would be obvious negative as from 4a + c – 2b  is less than 0 given and thus the graph would be facing downlwards.
Hence the inetrval should be if nothing is given would be,
(-infinity,2)
3 years ago
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