Determine the consecutive integer values of x between which each real zero is located for f(x) = x3 + 4x2 - 3x + 1

Select one:
a. between -2 and -1
b. between -6 and -5
c. between 0 and 1
d. between 5 and 6

Question

Determine the consecutive integer values of x between which each real zero is located for f(x) = x3 + 4x2 - 3x + 1

Select one:
a. between -2 and -1
b. between -6 and -5
c. between 0 and 1
d. between 5 and 6

1645323 · Answer

is this B? @phi

1645323 · Answer

I tried calculating the equation on my calculator and it said : NO SIGN CHANGE

phi · Answer

this one looks like it has a problem.
if we evaluate f(-5) we get -9
f(-4) = +13

so I would say -4 to -5 is the interval

1645323 · Answer

ok that is what I got too by graphing