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.
The inequality is
The inequality is in slope-intercept form.
\ (Subtract 0.5x from each side)
(Apply Additive inverse property:
)
(Apply Additive identity property:
)
To graph the inequality, first graph the
First find the y-intercept.
\The y-intercept is the value of y, when .
(Substitute
)
(Multiply:
)
(Apply Additive identity property:
)
The y-intercept is 4, so the graph intersects the y-axis at (0, 4).
Next find the x-intercept.
\The x-intercept is the value of x, when .
(Substitute
)
(Subtract 4 from each side)
(Apply Commutative property:
)
(Simplify)
(Divide each side by 0.5)
(Cancel common terms)
(Divide:
)
(Multiply each side by negative one)
(Product of two same signs is positive)
The x-intercept is 8, so the graph intersects the x-axis at (8, 0).
To draw inequality follow the steps.
1. Draw a coordinate plane.
\2. Plot the points.
\3. Since inequality symbol is <, the boundary is not included in the solution set. Graph the boundary of the inequality
with a dashed 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 true.
\4. Since the statement is true, shade the region that contains point .
\
Inequality graph is