Chapter 3 Review (8SA)

Front

What is absolute value?

Back

The absolute value of a number is its distance from zero on the number line, regardless of direction. It is always a non-negative number.

Front

Can an absolute value equal a negative number?

Back

No, an absolute value can never equal a negative number.

Front

What does the inequality a ≥ 11 represent?

Back

It represents all values of 'a' that are greater than or equal to 11.

Front

How do you express Johnny's earnings in inequality form if he wants to earn at least $105?

Back

15h ≥ 105, where 'h' is the number of hours he works.

Front

What does the inequality x ≤ -2 OR x > 5 mean?

Back

It means that 'x' can be any number less than or equal to -2, or any number greater than 5.

Front

Solve the inequality -2(x + 2) < 14.

Back

x > -9.

Front

What is the solution set for the inequality a < 11?

Back

The solution set includes all numbers less than 11.

Front

What does the symbol '≥' mean in inequalities?

Back

It means 'greater than or equal to'.

Front

What is the difference between 'AND' and 'OR' in inequalities?

Back

'AND' means both conditions must be true, while 'OR' means at least one condition must be true.

Front

If a > 11, what are some possible values for 'a'?

Back

Any number greater than 11, such as 12, 13, or 20.