EOU Unit 2 Practice!

Front

What is the first step to solve the inequality 3x + 5 < 20?

Back

Subtract 5 from both sides.

Front

What does the inequality x + y < 400 represent?

Back

It represents all pairs (x, y) where the sum is less than 400.

Front

What is the solution set for the inequality x > 5?

Back

All real numbers greater than 5.

Front

What does the expression 3(x - 4) simplify to?

Back

3x - 12.

Front

How do you isolate x in the equation y = mx + b?

Back

Subtract b from both sides and then divide by m.

Front

What is the meaning of the inequality symbol < ?

Back

It means 'less than'.

Front

If 6 > x, what can we conclude about x?

Back

x must be less than 6.

Front

What is the first mistake in solving the equation 2x + 3 = 7?

Back

Subtracting 3 from both sides.

Front

Which of the following is a solution to the inequality x + y < 400? (200, 150), (300, 200), (100, 250), (400, 0)

Back

(200, 150) is a solution.

Front

What is the equivalent expression for 3(x - 4)?

Back

3x - 12.