Solve the inequality and graph its solution: 5n – 10 25

Question

Solve the inequality and graph its solution: 5n – 10 > 25

whpalmer4 · Answer

First, find the solution if you had an equality instead of an inequality.  $$5n -10 = 25$$$$n =$$

Next, examine the inequality sign.  Does it contain an =? ($\le,\ge$)  If so, you use a closed circle or filled dot, because the endpoint is included.  Otherwise, use an open dot or empty circle, because the endpoint is not included.

Finally, decide which portion to shade.  I test with 0 or (0,0) because the arithmetic is easy.  If we set $n=0$, is the original inequality true? If so, shade the portion that includes $n=0$; otherwise, shade the other part.

anonymous · Answer

thank you