How do you graph \[3x+2y<6\]?
Answer
607.5k+ views
Hint: This question is based on an inequality equation graph, so first we have to convert the inequality symbol to an equal symbol, to find the boundary line below which the equation lies. After converting inequality to equality, we can find the x and y-intercept, where the boundary line lies and we can plot those points to get the graph.
Complete step by step solution:
We know that the given equation is,
\[3x+2y<6\]
Since, the given equation is a linear inequality equation, to graph the boundary line we have to momentarily change the inequality symbol to equality symbol, that is less than symbol to equal symbol.
Now, we can write this equation as,
\[3x+2y=6\]…….. (1)
Now we are going to find the x-intercept and y-intercept, where the graph crosses x and y-axis,
We can find y-intercept,
We know that at y-intercept, x=0.
Now we can substitute the value of x in equation (1), we get
\[\begin{align}
& \Rightarrow y=-3\left( 0 \right)+6 \\
& \Rightarrow y=3 \\
\end{align}\]
We got the point at y-intercept \[\left( 0,3 \right)\]
Now we can find x-intercept, y=0.
\[\begin{align}
& \Rightarrow 3x+0=6 \\
& \Rightarrow x=2 \\
\end{align}\]
We got the point at x-intercept \[\left( 2,0 \right)\]
We can now find the other points, by taking x = 1
\[\begin{align}
& \Rightarrow 3+2y=6 \\
& \Rightarrow y=\dfrac{3}{2} \\
\end{align}\]
Now we got another point \[\left( 1,\dfrac{3}{2} \right)\]
We can now take x = 3
\[\begin{align}
& \Rightarrow 9+2y=6 \\
& \Rightarrow y=-\dfrac{3}{2} \\
\end{align}\]
Therefore, the two points are \[\left( 1,\dfrac{3}{2} \right)\]and \[\left( 3,-\dfrac{3}{2} \right)\].
We also have to note that y is less than x, the area below the line is the graph for \[3x+2y<6\].
Now we can plot these points in the graph for \[3x+2y<6\].
Note: It is important to note that, in this given sum, we have an inequality equation, we have to change the less than symbol to equal symbol in order to find the x-intercept and y-intercept, that is the boundary line, below which the equation lies. If the given problem has greater than symbol, we can just remember that the equation lies above the boundary line for that respective equation.
Complete step by step solution:
We know that the given equation is,
\[3x+2y<6\]
Since, the given equation is a linear inequality equation, to graph the boundary line we have to momentarily change the inequality symbol to equality symbol, that is less than symbol to equal symbol.
Now, we can write this equation as,
\[3x+2y=6\]…….. (1)
Now we are going to find the x-intercept and y-intercept, where the graph crosses x and y-axis,
We can find y-intercept,
We know that at y-intercept, x=0.
Now we can substitute the value of x in equation (1), we get
\[\begin{align}
& \Rightarrow y=-3\left( 0 \right)+6 \\
& \Rightarrow y=3 \\
\end{align}\]
We got the point at y-intercept \[\left( 0,3 \right)\]
Now we can find x-intercept, y=0.
\[\begin{align}
& \Rightarrow 3x+0=6 \\
& \Rightarrow x=2 \\
\end{align}\]
We got the point at x-intercept \[\left( 2,0 \right)\]
We can now find the other points, by taking x = 1
\[\begin{align}
& \Rightarrow 3+2y=6 \\
& \Rightarrow y=\dfrac{3}{2} \\
\end{align}\]
Now we got another point \[\left( 1,\dfrac{3}{2} \right)\]
We can now take x = 3
\[\begin{align}
& \Rightarrow 9+2y=6 \\
& \Rightarrow y=-\dfrac{3}{2} \\
\end{align}\]
Therefore, the two points are \[\left( 1,\dfrac{3}{2} \right)\]and \[\left( 3,-\dfrac{3}{2} \right)\].
We also have to note that y is less than x, the area below the line is the graph for \[3x+2y<6\].
Now we can plot these points in the graph for \[3x+2y<6\].
Note: It is important to note that, in this given sum, we have an inequality equation, we have to change the less than symbol to equal symbol in order to find the x-intercept and y-intercept, that is the boundary line, below which the equation lies. If the given problem has greater than symbol, we can just remember that the equation lies above the boundary line for that respective equation.
Recently Updated Pages
Write structures of the following compounds i 2 Chloro3methylpentane class 11 chemistry CBSE

What is BLO What is the full form of BLO class 8 social science CBSE

Explain the Treaty of Vienna of 1815 class 10 social science CBSE

A Paragraph on Pollution in about 100-150 Words

XIX+XXX A 49 B 51 C 55 D 44 class 5 maths CBSE

If x a + bt + ct2 where x is in meters and t is in class 11 physics CBSE

Trending doubts
One Metric ton is equal to kg A 10000 B 1000 C 100 class 11 physics CBSE

Find the value of the expression given below sin 30circ class 11 maths CBSE

What do you mean by retardation What is its SI uni class 11 physics CBSE

Draw a diagram of nephron and explain its structur class 11 biology CBSE

10 examples of friction in our daily life

Difference between physical and chemical change class 11 chemistry CBSE

