Math Problem Statement

open curly brackets table attributes columnalign left end attributes row cell y space greater or equal than space minus 4 x space plus space 1 end cell row cell y space less or equal than space minus 4 x space plus space 4 end cell end table close

A. open curly brackets table attributes columnalign left end attributes row cell y space less or equal than space minus 4 space plus space 1 end cell row cell y space greater or equal than space minus 4 x space plus space 4 end cell end table close

B. open curly brackets table attributes columnalign left end attributes row cell y space less than space minus 4 x space plus space 1 end cell row cell y space greater than space minus 4 x space plus space 4 end cell end table close

D. open curly brackets table attributes columnalign left end attributes row cell y space greater than space minus 4 x space plus space 1 end cell row cell y space less than space minus 4 x space plus space 4 end cell end table close

The systems you have seen thus far all have inequalities in which the boundary lines intersect. Take a look at the graph, which shows parallel boundary lines.

As with intersecting boundary lines, if the inequality symbol is less than or less or equal than , shade below the boundary line. If the inequality symbol is greater than or greater or equal than , shade above the boundary line. The solutions are all of the ordered pairs in the overlapping shaded area.

Solution

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Math Problem Analysis

Mathematical Concepts

Linear Inequalities
Graphing Parallel Lines
Solution Sets

Formulas

y = mx + b (slope-intercept form of a line)
Inequality shading rules (above for ≥, below for ≤)

Theorems

Linear inequality theorem: the solution region is where the graph satisfies the inequality
Slope theorem: two lines with equal slopes are parallel

Suitable Grade Level

Grades 8-10