Questions: Solve the system of linear inequalities graphically by matching the solution region with one of the four regions shown in the multiple choice.
-3x + y ≥ 6
x ≤ 3
Transcript text: Solve the system of linear inequalities graphically by matching the solution region with one of the four regions shown in the multiple choice.
\[
\begin{aligned}
-3 x+y & \geq 6 \\
x & \leq 3
\end{aligned}
\]
Solution
Solution Steps
Step 1: Rewrite the first inequality in slope-intercept form
The inequality $-3x + y \ge 6$ can be rewritten as $y \ge 3x + 6$.
Step 2: Graph the lines $y=3x+6$ and $x=3$
The line $y=3x+6$ has a y-intercept of 6 and a slope of 3. The line $x=3$ is a vertical line passing through x=3.
Step 3: Determine the shaded region
For $y \ge 3x+6$, the shaded region is above the line $y=3x+6$. For $x \le 3$, the shaded region is to the left of the line $x=3$. The solution region is the intersection of these two shaded regions.