Inequalities and substitution (Part 1)
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Key learning points
- In this lesson, we will substitute different values into an algebraic inequality to see if it is true or false.
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3 Questions
Q1.
Which of the following statements is TRUE? Select one.
18 ÷ 3 = 15 ÷ 5
5 + 4 < 6 + 4
6 x 5 > 7 x 3
Q2.
Which inequality fits in the gap? 5 + 8 ____ 7 + 8?
=
>
≥
Q3.
Which value of x does NOT satisfy the inequality x ≤ 6 (where x is a number)?
x = 4
x = 5
x = 6
3 Questions
Q1.
Which of the following values of x satisfy the inequality x + 2 < 11 ? Select ONE
x = 10
x = 11
x = 9
Q2.
Which of these statements are true if x = 2? Select all that apply.
11 < 13 - x
2x ≤ 3
Q3.
Which of the following inequalities is satisfied if x = 3 and y = 4?
3x + 4y < 25
3x + 4y > 25
4x + 3y > 25