185 - 3.a1 & 3.a2 Formative Review 2021

Front

What is the solution to the inequality 4x + 1 < 11?

Back

x < 2.5

Front

How do you solve the inequality \( \frac{x}{4} > -3 \)?

Back

Multiply both sides by 4 to get x > -12.

Front

What is the solution to the inequality -9x ≤ 21?

Back

x ≥ -2\frac{1}{3}.

Front

What inequality represents the graph where x is greater than or equal to 1?

Back

x ≥ 1.

Front

What inequality represents the graph where x is less than or equal to -2?

Back

x ≤ -2.

Front

What is the first step in solving the inequality 4x + 1 < 11?

Back

Subtract 1 from both sides to isolate the term with x.

Front

When solving inequalities, what should you remember about multiplying or dividing by a negative number?

Back

You must reverse the inequality sign.

Front

What is the graphical representation of the inequality x ≥ 1?

Back

A closed dot at 1 and a line extending to the right.

Front

What is the graphical representation of the inequality x ≤ -2?

Back

A closed dot at -2 and a line extending to the left.

Front

How do you check the solution of an inequality?

Back

Substitute a value from the solution set back into the original inequality.