Question

in plotting the boundary points, what is used when the original and equality includes the equality?

a. open circles
b. open circles
c. arrow
d. all of the above

hehe pls answer thankyousomuch​

Answer 1

Answer:

Step-by-step explanation:

If the problem includes where it is equal, then you will have a solid boundary line. In other words, if you have < or > , you will have a solid line for your boundary line. If the problem does not include where it is equal, then you will use a dashed boundary line.

Answer 2

Answer:

closed circles

Step-by-step explanation:

To solve an inequality containing an absolute value, treat the "<", "≤", ">", or "≥" sign as an "=" sign, and solve the equation as in Absolute Value Equations. The resulting values of x are called boundary points or critical points.

Plot the boundary points on the number line, using closed circles if the original inequality contained a ≤ or ≥ sign, and open circles if the original inequality contained a < or > sign. If you are unsure which type of circle to use, test each critical point in the original inequality; if it satisfies the inequality, use a closed circle.