What is an inequality math problem?
The word inequality means a mathematical expression in which the sides are not equal to each other. Basically, an inequality compares any two values and shows that one value is less than, greater than, or equal to the value on the other side of the equation.
What grade are inequalities taught?
6th-8th Grade Math: Inequalities – Chapter Summary By studying this chapter, students in the 6th-8th grades can reinforce what they’ve learned about inequalities in math class.
Is the inequality true or false?
To determine whether an inequality is true or false for a given value of a variable, plug in the value for the variable. If an inequality is true for a given value, we say that it holds for that value. Example 1. Is 5x + 3≤9 true for x = 1?
How do you solve a simple inequality in math?
Summary Many simple inequalities can be solved by adding, subtracting, multiplying or dividing both sides until you are left with the variable on its own. But these things will change direction of the inequality: Multiplying or dividing both sides by a negative number
What is the key approach in solving rational inequalities?
The key approach in solving rational inequalities relies on finding the critical values of the rational expression which divide the number line into distinct open intervals. The critical values are simply the zeros of both the numerator and the denominator.
How do you find the critical value of an inequality?
Solving Rational Inequalities The key approach in solving rational inequalities relies on finding the critical values of the rational expression which divide the number line into distinct open intervals. The critical values are simply the zeros of both the numerator and the denominator.
How to solve word problems leading to inequalities?
7.EE.4B Solve word problems leading to inequalities of the form px + q > r or px + q < r, where p, q, and r are specific rational numbers. Graph the solution set of the inequality and interpret it in the context of the problem. For example: As a salesperson, you are paid $50 per week plus $3 per sale.