correct. It can't get from -2 to 6 without going through 0 somewhere in between.
You also need to mention that f(x) is continuous. That is necessary.
Want to make sure I am doing this correctly.
Use the Intermediate Value Theorem for polynomials to show that the polynomial function f(x)has zero between the numbers given.
f(x)=3x^2-x-4 ; 1 and 2
3(1)^2-1-4= - 2 below zero
3(2)^2-1-4= 6 above zero
Am I doing this problem correct
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Thank you for your help.
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