Find all values of
where f\left(x\right) > 0 .
Find all values of
where f\left(x\right) > 0 .
The problem requires us to determine where the function , depicted in the graph, is greater than 0. This interval will be where the graph lies above the x-axis. From the visual representation, the parabola intersects the x-axis at .
Given it is a standard parabola opening upwards or downwards, we need to determine the regions of positivity based on its graph above the x-axis. Usually, a quadratic function, if it opens upwards, has negative values between its roots, provided there's a minimum point. If it opens downwards, the opposite is true.
From the graph, observe that the parabola is indeed below the x-axis at point . The function is positive on both sides away from the point where it intersects (the ends of the parabola ascend back above the x-axis).
To find the solution, notice:
Thus, the values of for which are on the intervals and .
The function is positive for or . Therefore, the correct answer is: or .
x < 5 or x > 5