Explain why it is usually only necessary to test one point when graphing an inequality

Find the solution set of this inequality. enter your answer in interval notation using grouping symbols. |8x-4| ≤ 12

You buy a veido game for $60 and the sales tax is 8% what is the total cost for the game including the sales tax

Aline is perpendicular to another line m2= (-1/m1), where m1 is the slope of the original line and m2 is the slope of the perpendicular line. which of the following equations represents the line that passes through the point (-2,1) and is perpendicular to the line below?