Questions: Choose the inequality statement that matches the graph.
-6x + 5y < 30
5x - 6y ≥ 30
-6x + 5y > 30
-6x + 5y ≥ 30
Transcript text: Choose the inequality statement that matches the graph.
$-6 x+5 y<30$
$5 x-6 y \geq 30$
$-6 x+5 y>30$
$-6 x+5 y \geq 30$
Solution
Solution Steps
Step 1: Find two points on the line.
Two points on the line are (-5, 0) and (0, 6).
Step 2: Determine the equation of the line.
The slope of the line is (6 - 0) / (0 - (-5)) = 6/5.
Using the point-slope form, the equation of the line is y - 0 = (6/5)(x - (-5)), which simplifies to y = (6/5)x + 6.
Multiplying both sides by 5 gives 5y = 6x + 30, which can be rewritten as -6x + 5y = 30.
Step 3: Determine the inequality sign.
The shaded region is above the line. A test point in the shaded region, such as (0, 10), can be used to determine the inequality sign.
Substituting (0, 10) into the equation -6x + 5y gives -6(0) + 5(10) = 50.
Since 50 is greater than 30 and the shaded region is above the line, the inequality is -6x + 5y > 30.