Chapter 6, Lesson 13


6-13.A distinguish between a dashed and solid boundary line
Complete each statement using dashed or solid.
a. When graphing the inequality 3x + 2y ≤ —6, the boundary line should be a ___?____ line.
b. When graphing the inequality 3x + 2y > —6, the boundary line should be a ___?____ line.

6-13.B graph linear inequalities
Which inequality is represented by this graph?

(a) 3x — 5y < 15 (b) 3x — 5y ≤ 15
(c) 3x — 5y > 15 (d) 3x — 5y ≥ 15