REVIEW Unit 4 Part 1 TEST

Front

What does the phrase 'at least' signify in mathematical terms?

Back

It signifies 'greater than or equal to' (≥).

Front

How do you solve the inequality k - 13 > -51?

Back

Add 13 to both sides to get k > -38.

Front

What is the solution set for the inequality x < -2 or x ≥ 3?

Back

The solution set includes all x values less than -2 and all x values greater than or equal to 3.

Front

How do you solve the inequality 10 ≥ x - 3?

Back

Add 3 to both sides to get 13 ≥ x, which simplifies to x ≤ 13.

Front

When graphing an inequality, when do you use a closed dot?

Back

You use a closed dot when the inequality includes ≤ or ≥.

Front

What is the difference between '>' and '≥' in inequalities?

Back

'>' means greater than (not including the value), while '≥' means greater than or equal to (including the value).

Front

How do you represent the solution to the inequality x > 5 on a number line?

Back

Draw an open circle at 5 and shade to the right.

Front

What does the solution x ≤ 4 represent on a number line?

Back

It represents all values less than or equal to 4, including 4 itself.

Front

What is the graphical representation of the inequality x < 0?

Back

An open circle at 0 with shading to the left.

Front

How do you combine the inequalities x < -1 and x > 2?

Back

The combined solution is x < -1 or x > 2.