Checking:
Let x = 12 (less than 13), then 4x – 11 < 3x + 2 becomes
4(12) – 11 < 3(12) + 2, which is 48 – 11 < 36 + 2, OR 37 < 38 (TRUE).
To graph this inequality, you just need to draw a “broken,” or dotted vertical line going through x = 13. You would then need to shade the entire left section of this “broken,” or dotted vertical line to indicate that all x-values that are less than x = 13, and with y-values of 0 (zero) will satisfy this inequality. Furthermore, the points on this “broken” or dotted lined (x = 13) DO NOT satisfy this inequality.