The graph of the inequality is the shaded region and boundary of the inequality is
. To graph the boundary, find the x-intercept and y-intercept of the line.
First find the y-intercept.
\The y-intercept is the value of y, when .
(Substitute
)
(Multiply:
)
(Apply Additive identity property:
)
The y-intercept is – 5, so the graph intersects the y-axis at (0, – 5).
Next find the x-intercept. \ \
\The x-intercept is the value of x, when .
(Substitute
) \ \
(Add 5 to each side) \ \
(Simplify) \ \
(Divide each side by 3)
(Cancel common terms)
(Divide:
)
The x-intercept is 1.66, so the graph intersects the x-axis at (1.66, 0).
To draw inequality follow the steps.
1. Draw a coordinate plane.
\2. Plot the points.
\3. Since inequality symbol is
, the boundary is included in the solution set. Graph the boundary of the inequality
with a solid line.
4. To determine which half-plane to be shaded use a test point in either half-plane. A simple choice is .
Substitute and y = 0 in original inequality .
The statement is false.
\4. Since the statement is false, shade the region that do not contains point .
\
Inequality graph is