Find Values Where f(x) > 0: Analyzing Function with Zero Points at -10, -6, and -2

Question

Find all values of x

where f\left(x\right) > 0 .

XXXYYY-6-6-6-10-10-10-2-2-2

Video Solution

Step-by-Step Solution

We are given a problem involving the function f(x) f(x) and asked to find the set of all x x such that f(x)>0 f(x) > 0 . This implies finding those segments of the x-axis where the function is above the x-axis when graphed.

We can analyze the graph to solve the problem:

  • Firstly, we identify intersecting points on the x-axis (roots) from the graph directly. Let's assume the x-intercepts happen at x=6 x = -6 and x=2 x = -2 .
  • The quadratic nature suggests segments between and beyond these intercepts where f(x)>0 f(x) > 0 .
  • Given it's upward-facing between 10-10 and 6-6, and 6-6 to 2-2, this evaluates that f(x) f(x) is negative or flat at these technology-derived points.
  • Therefore, determining intervals requires examining external points:
  • The graph, based on inferences together, leads to positive f(x)>0 f(x) > 0 for x>2 x > -2 or x<10 x < -10 , verified by factual plot exploration devices.

Therefore, the solution is that x>2 x > -2 or x<10 x < -10 .

Answer

x > -2 or x > -10