0
The line is dotted when the inequality is a strict inequality, ie it is either "less than" (<) or "greater than" (>).
If there is an equality in the inequality, ie "less than or equal to" (≤), "greater than or equal to" (≥) or "equal to" (=) then the line is drawn as a solid line.
Add your answer:
Earn +20 pts
What kind of line do you use to graph an inequality?
A dashed/dotted line if it is > or <. Otherwise use a regular line. Also shading is required.
Why do we represent the solution to an inequality with a graph on a number line but we don't do the same for the solution to an equation?
An equation has an equal sign, which means that we know what the variable is equal to :)
What does a dashed line represent on a graph?
It can represent the graph of a strict inequality where the inequality is satisfied by the area on one side of the dashed line and not on the other. Points on the line do not satisfy the inequality.
An equation where the graph of all solutions lies on a line?
If it is a straight line, then the equation is linear.
How is graphing a two variable inequality similar to graphing a one variable inequality?
One variable inequality- graph the point on the number line then choose a point on the point, to the left and to the right to see what gets shaded. Two variable inequality- graph the line on grid paper then choose a point on the line, to the left and to the right to see what gets shaded.
What kind of line do you use to graph an inequality?
A dashed/dotted line if it is > or <. Otherwise use a regular line. Also shading is required.
Which inequality symbols are represented by a solid line on a graph?
The graph of an inequality is a region, not a line.
What best describes the graph of the inequality 3x - y 5?
-2
When graphing a system of inequalities the line is dotted for the?
strict inequality
Why do we represent the solution to an inequality with a graph on a number line but we don't do the same for the solution to an equation?
An equation has an equal sign, which means that we know what the variable is equal to :)
Explain when to use a solid line as a boundary when graphing a linear inequality?
If the points that are ON the line satisfy the inequality then the line should be solid. Otherwise it should be dotted. Another way of putting that is, if the inequality is given in terms of ≤ or ≥, then use a solid line. If they are < or > use a dotted line.
What does a dashed line represent on a graph?
It can represent the graph of a strict inequality where the inequality is satisfied by the area on one side of the dashed line and not on the other. Points on the line do not satisfy the inequality.
How do write the Slope-intercept inequality for a graph?
First, write the equation of the line of the graph. Next, if the line is solid, it means equal to. If it is dotted: not equal to. Lastly, the shaded portion of a graph is where the points satisfy the equation. So pick a point in the shaded region, plug it in, and put the appropriate larger than, or less than sign to make the statement true. EX: plug in (3,1) to y _ 3x+1 1 _ 10, then 1 < 10 So, y < 3x + 1 (add [or equal to] if the line is solid)
Which is a correct way of graphing the line y -x - 2?
y -x - 2 is not an equation (nor an inequality) and so there is no way to graph it.
What is the graph of linear equation?
The graph will be a line.
What determines if the line is dotted or straight for an inequality?
If it is a 'greater than' or a 'less than' then it's a dotted line. If 'less than or equal' or if it's a 'greater than or equal' then it's a solid line.
When does an equation graph a line?
When it is a linear equation.
