The key then, to finding the solution set for a polynomial inequality is to find the polynomial´s zeroes (its x-intercepts), putting them on the number line, and picking a test point in each region. Between any two consecutive zeroes, the polynomial will be either positive (if the graph is above the X-axis) or negative (if the graph is below ...

Verifone vx 820 hard resetFirst we graph our boundaries; we dash the line if the values on the line are not included in the boundary. If the values are included we draw a solid line as before. Second we test a point in each region. If one point on one side of the line satisfies our inequality, the coordinates of all the points on the same side of the line will satisfy ...

2. Set up a number line to investigate the intervals created by the equation solutions. Pick a number in each interval and test it in the inequality. If the result is true, that interval is a solution to the inequality. There may be more than one interval which is a solution. 3. Graph the solution set.