If f(x) is a continuous function defined for all real numbers, f(–10) = –2, f(–8) = 5, and f(x) = 0 for one and only one value of x, then which of the following could be that x value?

Intermediate value theoremif is continuous on a closed interval  , and  is a number between  and  ,  with , then there is at least one number  in the interval  that satisfies  ======we have f(-10) = -2 and f(-8) = 5.want to find a value to satisfy  f(x) = 0.ivt: we see that 0 is between the given values of f.so there has to be at least one number c between  that will satisfy  in the interval  , only the answer of -9 works.b) -9

Answer is negative 2