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
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