Write the solution set in interval notation and graph it. Z − 8 ≥ − 7

Question

Write the solution set in interval notation and graph it.  Z  −  8  ≥  −  7

tangouwn · Accepted Answer

Z  ≥  1so set = [1, infinity)and graph is just a line to the right of 1 with a close circle andshaded at 1

spainhour83lz · Accepted Answer

Ok always associate interval notation with inequalities. Its basically a line graph that plots points from

0 - + \infty

and

0 t o - \infty

. Ok now regarding your question problem, z will always be= to 0. That will be your x axis for this probelm. You can alread ysee that with this problem just like any other problem you have tosolve for x. Here -8 goes to the right as we solve for x.

Z \geq 1

. So what this means graphically that youcan plot the point 1. Everything from 1 to

\infty

is a set numberfor this problem.
Remember inequalities can get very complex so its always goodto understand what you need to do when put in a position to solvethem (even graphically).

Write the solution set in interval notation and graph it. Z-8ge -7

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