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Maths Exercices

Identify solutions to inequalities

A number is a solution to an inequality if plugging it in results in a true statement.

Is d = 9 a solution to the inequality below?

d > 1

yes
no

Solution:

Plug d = 9 into the inequality.

d
 >  1

9
 >  1 Plug in d = 9

It is true that 9 > 1. So, d = 9 is a solution.

Is v = 12 a solution to the inequality below?

v 9

yes
no

Solution:

Plug v = 12 into the inequality.

v
 ≤  9

12
 ≤  9 Plug in v = 12

It is false that 12 ≤ 9. So, v = 12 is not a solution.

Is b = 19 a solution to the inequality b ≤ 6?

A. yes
B. no