Lesson 4-4, 4-5, and 4-6 Flashcard

Front

What symbol is used for a closed dot when graphing an inequality?

Back

≤, ≥

Front

What does it mean to isolate the variable in an equation?

Back

Get the variable all by itself.

Front

How would you express 'There are no more than 18 students in the hall' in inequality form?

Back

s ≤ 18

Front

What is the main difference between an equation and an inequality?

Back

An equation uses an equal sign (=) while an inequality uses (<, >, ≤, ≥).

Front

What symbol is used for an open dot when graphing an inequality?

Back

<, >

Front

What does the symbol '≤' represent in an inequality?

Back

Less than or equal to.

Front

What does the symbol '≥' represent in an inequality?

Back

Greater than or equal to.

Front

If a variable 's' represents students, how would you express 'more than 18 students'?

Back

s > 18

Front

What does it mean if an inequality has an open dot on a number line?

Back

The value at that point is not included in the solution.

Front

What does it mean if an inequality has a closed dot on a number line?

Back

The value at that point is included in the solution.