Table of contents
- 0. Review of Algebra4h 16m
- 1. Equations & Inequalities3h 18m
- 2. Graphs of Equations43m
- 3. Functions2h 17m
- 4. Polynomial Functions1h 44m
- 5. Rational Functions1h 23m
- 6. Exponential & Logarithmic Functions2h 28m
- 7. Systems of Equations & Matrices4h 6m
- 8. Conic Sections2h 23m
- 9. Sequences, Series, & Induction1h 19m
- 10. Combinatorics & Probability1h 45m
7. Systems of Equations & Matrices
Graphing Systems of Inequalities
Problem 58
Textbook Question
Graph the solution set of each system of inequalities.
2y+x≥−5
y≤3+xx≤0
y≤0

1
Step 1: Start by graphing the inequality 2y + x \ge -5. Rewrite it in slope-intercept form (y = mx + b) by isolating y. Subtract x from both sides to get 2y \ge -x - 5, then divide every term by 2 to get y \ge -\frac{1}{2}x - \frac{5}{2}. This represents a line with a slope of -\frac{1}{2} and a y-intercept of -\frac{5}{2}. Shade the region above this line, as the inequality is \ge.
Step 2: Next, graph the inequality y \le 3 + x. Again, rewrite it in slope-intercept form if necessary. This is already in the form y \le x + 3, which represents a line with a slope of 1 and a y-intercept of 3. Shade the region below this line, as the inequality is \le.
Step 3: Graph the inequality x \le 0. This is a vertical line at x = 0. Shade the region to the left of this line, as the inequality is \le.
Step 4: Graph the inequality y \le 0. This is a horizontal line at y = 0. Shade the region below this line, as the inequality is \le.
Step 5: The solution set of the system of inequalities is the region where all the shaded areas overlap. Identify this region on the graph, which will be bounded by the lines you have drawn and shaded according to the inequalities.
Recommended similar problem, with video answer:

This video solution was recommended by our tutors as helpful for the problem above
Video duration:
10mPlay a video:
Was this helpful?
Watch next
Master Linear Inequalities with a bite sized video explanation from Patrick Ford
Start learning