MathAlgebra

Inequality for Absolute Value: Solve |4x + 1| − 3 > 2 Graphically

Graph the absolute-value function and horizontal comparison line, find both intersections, and mark the two open-ended solution intervals.

Question

Solve the following inequality using a graphing utility:

∣4x+1∣−3>2.|4x+1|-3>2.

Enter Y1=∣4x+1∣−3Y_1=|4x+1|-3 and Y2=2Y_2=2. Use the absolute-value command (MATH → Num → 1:abs on the textbook's calculator) and locate the intersections (2nd → CALC → 5:intersection; select the first curve, second curve, and a guess). Provide a sketch of both graphs, shade the solution on the x-axis, and give the final solution in interval notation.

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Evidence boundary

This is the complete graphing-utility task in OpenStax College Algebra section 2.7, exercise 56. The supplied sketch is generated from the exact piecewise equations and verified intersections, with the required x-axis shading. It is a mathematical solution, not a fabricated record of a particular calculator session.