Practice!

Sample Problem

Determine the interval(s) for which f(x)≥0. (round to nearest whole number; order the intervals from least to greatest)

≤ x ≤

≤ x ≤

Solution

The area for which f(x)≥0 are the first and second quadrants (y values are all positive) as highlighted in yellow below. We can see in the highlighted section that the intervals for which the function is positive are -5≤x≤3 and 2≤x≤5.