3.4 Quadratic Inequalities (Part 2)

Posted on April 18, 2020 by user

(C) Linear Inequality

Example 1
(a) Given

x = \frac{6 - y}{3}

, find the range of values of x for which y > 9 .
(b) Given

2 x + 3 y - 6 = 0

, find the range of values of x for which y < 4 .

(D) Quadratic Inequalities

Example 2
Find the range of values of x which satisfy the following inequalities:

(a) (2x + 1) (3x – 1) < 14

(b) (x– 2) (5x – 4) + 1 > 0