Review for 2nd Quarter Exam

Which of the following is an example of linear inequality in two variables?

• 5x-y=1

• 2x+y<2

• x+2y=5

• 4x-5y=-6

In linear inequality in two variables, the symbols used instead of an equal sign are the following EXCEPT.

• < and >

• ≤and ≥

• { }

The solution to linear inequality in two variables is a ________.

• point

• line

• region

• origin

In graphing linear inequality, we use _______ line if the inequality symbol is either < or >.

• broken

• curve

• solid

• vertical

_________ line is used when the inequality symbol is ≤or≥.

• broken

• curve

• solid

• vertical

Is Point D a solution to the inequality?

• No

• Yes

• Maybe

• Undecided

When we substitute (0,0) to the inequality, will it be TRUE?

• Yes

• Maybe

• No

• Undecided

Is Point A a solution to the inequality?

• Undecided

• No

• Yes

• Maybe

The solid line has a/an ________ trend.

• increasing

• decreasing

• horizontal

• vertical

Is Point E a solution to the system of inequalities?

• No

• Yes

• Maybe

• Undecided