6. How does the graph of a linear inequality in two variables look like?

A. It is a line.
B. It is a curve.
C. It is a region of points bounded by a line.
D. it is a region of points bounded by a curve.

7. Which of the following verbal phrases DOES NOT represent a linear inequality in two variables?

A. "the number of teachers in the learning center is not 20%

B. 'the number of teachers in the learning center is at least 20%

C. "the number of teachers in the learning center is 20"

D. "the number of teachers in the learning center is greater than or equal to 20%

8. When do we reverse the direction of the inequality symbol in a linear inequality?

A. multiplying or dividing positive integers to both sides of the expression

B.multiplying or dividing negative integers to both sides of the expression

C. adding negative integers to both sides of the expression

D. subtracting negative integers to both sides of the expression

9. Which of the following statement DOES NOT represent a linear inequality in two variables?

A. A dozen of oranges (o) added to two dozen of apples (a) has a total cost of at most Php 1.950

B. A dozen of oranges (o) added to two dozen of apples (u) is not equal to Php 1.950

C. A dozen of oranges (o) added to two dozen of apples (a) is lesser than Php 1.950.

D. A dozen of oranges (o) added to two dozen of apples (a) is five pesos less than Php 1.950

In a 2-dimensional Cartesian coordinate system, with x representing the abscissa and y the ordinate, the identity line or line of equality is the y = x line.

8. When do we reverse the direction of the inequality symbol in a linear inequality?

- B.multiplying or dividing negative integers to both sides of the expression.

Explanation:

Anytime you multiply or divide both sides of the inequality, you must “flip” or change the direction of the inequality sign. This means that if you had a less than sign <, it would become a greater than sign >.

9. Which of the following statement DOES NOT represent a linear inequality in two variables?

- B. A dozen of oranges (o) added to two dozen of apples (u) is not equal to Php 1.950

Explanation:

To graph the solution set of an inequality with two variables, first graph the boundary with a dashed or solid line depending on the inequality. If given a strict inequality, use a dashed line for the boundary. If given an inclusive inequality, use a solid line. Next, choose a test point not on the boundary.

[tex]pa \: follow \: po \: kung \: ok \: lang[/tex]