Pearson Algebra 2 Common Core, 2011
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Pearson Algebra 2 Common Core, 2011 View details
Cumulative Standards Review

Exercise 3 Page 899

Substitute each point into the given inequality and then simplify.

C

Practice makes perfect
We want to know which point is not a solution of the given inequality.
We can determine whether each point is a solution by substituting its values into the inequality and simplifying it. If it leads to a false statement, then it is not a solution of the inequality. Let's start with the point we can determine if it is a solution by substituting for and for
Simplify
Since is a true statement, is a solution of the inequality. Now, let's repeat the same for the next options.
Option Point Substitute Simplify Solution?
A
B
C
D

As we can see, the substitution of led to which is a false statement, while the other points led to true statements. Because of that, only is not a solution of the inequality. Since we are looking for the point that is not a solution of the inequality, C is the correct option.