
How do you graph and on the axes?
Answer
462.3k+ views
Hint:
We have to plot two inequalities on the graph. The plotting of an inequation is an area where all the points satisfy the inequation. We have found such an area where all the points satisfy the given two conditions or constraints. For plotting an inequation we first plot the equation that we get by just replacing the inequality sign with ‘=’ sign. And then we choose the area satisfied by the inequation.
Complete step by step solution:
We are given two inequalities and that we have to plot on the graph. Both inequalities are to be plotted simultaneously on the same graph and all the points in the resulting area should satisfy both the conditions or constraints.
But for the ease of explanation here we will plot the graphs differently and then present the combined result.
First we will plot on the graph. For this we have drawn the line and then choose the suitable area satisfying the condition .
For plotting the straight line we need two points which we can get by putting two values of and getting corresponding values of .
For and for . Thus we get two points as and . This we plot and join and then extrapolate to get the graph of line . The graph is now divided into two areas. Now on the graph we choose a point on the left side of the line , let us say . We see that does not satisfy . So we choose a point from the right side of the line, let us say . This point satisfies . So the right side of the line is the desired area, as indicated by the arrows and shaded in blue in the Fig. 1.
Fig. 1 - Graph of
Now we plot on the same graph. For this we have drawn the line and then choose the suitable area satisfying the condition .
Here the value of is for all values of . So we get a straight vertical line passing through .
The graph is now divided into two areas corresponding to . Now on the graph we choose a point on the left side of this line, let us say . We see that does not satisfy . So we choose a point from the right side of the line, let us say . This point satisfies . So the right side of the line is the desired area, as indicated by arrows and shaded in green in the Fig. 2.
Fig. 2 - Graph of
We have to plot both the above graphs in the same graph to get the desired result. The resulting graph is shown in Fig. 3.
Fig. 3 - Graph of and
The resulting area is the darkened region in Fig. 3, also indicated by the arrows. All the points in this region will satisfy both the conditions and .
Note:
The line of the graphs and are shown by dashes and not solid lines. This means that the points on this line are not included in the result as is strictly less than and is strictly more than . Any point in the resulting area should satisfy the conditions given in the question.
We have to plot two inequalities on the graph. The plotting of an inequation is an area where all the points satisfy the inequation. We have found such an area where all the points satisfy the given two conditions or constraints. For plotting an inequation we first plot the equation that we get by just replacing the inequality sign with ‘=’ sign. And then we choose the area satisfied by the inequation.
Complete step by step solution:
We are given two inequalities
But for the ease of explanation here we will plot the graphs differently and then present the combined result.
First we will plot
For plotting the straight line we need two points which we can get by putting two values of
For

Fig. 1 - Graph of
Now we plot
Here the value of
The graph is now divided into two areas corresponding to

Fig. 2 - Graph of
We have to plot both the above graphs in the same graph to get the desired result. The resulting graph is shown in Fig. 3.

Fig. 3 - Graph of
The resulting area is the darkened region in Fig. 3, also indicated by the arrows. All the points in this region will satisfy both the conditions
Note:
The line of the graphs
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