Hey there can you help me out on this question
1 answer:
Discriminant of a quadratic equation can be calculated as:
Discriminant = b² - 4ac
b = coefficient of x term = 2
a = coefficient of squared term = 1
c = constant = 7
So,
Discriminant = 4 - 4(1)(7) = -24
So, the correct answer to this question is option C
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Step-by-step explanation:
Remember, x^-1=1/x
so
f(-1)=4(7)^-1=4(1/7)=4/7
f(2)=4(7)^2=4(49)=196
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Answer:
Refer the attachment
SO, OPTION (D) IS CORRECT