QUESTION IMAGE
Question
solve the system of two linear inequalities graphically.\
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step 3 of 3: graph the solution set for the system.\
answer
Step1: Find intersection of lines
Set $-5x - 10 = x + 2$
$-6x = 12$
$x = -2$, substitute $x=-2$ into $y=x+2$: $y=0$
Intersection point: $(-2, 0)$
Step2: Graph $y \leq -5x -10$
First plot line $y=-5x-10$ (solid line, since $\leq$). Use intercepts: when $x=0$, $y=-10$; when $y=0$, $x=-2$. Shade below the line.
Step3: Graph $y > x + 2$
Plot line $y=x+2$ (dashed line, since $>$). Use intercepts: when $x=0$, $y=2$; when $y=0$, $x=-2$. Shade above the line.
Step4: Identify overlapping region
The solution set is the area that is shaded below the solid line $y=-5x-10$ AND above the dashed line $y=x+2$, bounded by the intersection point $(-2, 0)$.
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The solution set is the overlapping shaded region: above the dashed line $y = x + 2$ and below the solid line $y = -5x - 10$, with the boundary intersection at $(-2, 0)$.
To visualize:
- Draw a solid line through $(0, -10)$ and $(-2, 0)$ for $y = -5x - 10$, shade below it.
- Draw a dashed line through $(0, 2)$ and $(-2, 0)$ for $y = x + 2$, shade above it.
- The overlapping shaded area is the solution.