What is the \[x\] and \[y\] intercept for \[x-2y=8\]?
Answer
598.5k+ views
Hint: The \[x\] and \[y\] intercepts can be found by using the point- slope formula of a line. The\[x\] intercepts can be found by substituting suitable values such that it satisfies the condition \[y=0\]. In the same way, \[y\] intercepts can be found by evaluating the given function for \[x=0\].
Complete step by step solution:
Now let us know more about the point-slope formula as we are going to apply it in our problem.
Point-slope form: It is the general form for the linear equations. It emphasizes the slope of the line and a point on the line which is not the \[y\] intercept. The general form of the point-slope form is \[y=mx+b\] where \[m\] denotes the slope and \[b\] denotes the \[y\] intercept.
Now let us proceed with the line equation given to us \[x-2y=8\].
On comparing it with the general form of the point-slope formula, we have to rearrange the given equation.
On rearranging we get,
\[-2y=-x+8\]
On evaluating for the \[y\] value, we get
\[y=\dfrac{1}{2}x-4\]
In order to find the \[x\] intercept, we have
\[y=\dfrac{1}{2}x-4=0\]
On solving, we get
\[\begin{align}
& \dfrac{1}{2}x=4 \\
& x=8 \\
\end{align}\]
\[\therefore \] The \[x\] intercept is \[\left( 8,0 \right)\]
To find out the \[y\] intercept, we have to substitute \[x=0\] into the equation.
\[\begin{align}
& y=\dfrac{1}{2}x-4 \\
& =\dfrac{1}{2}\left( 0 \right)-4 \\
& =0-4 \\
& =-4 \\
\end{align}\]
\[\therefore \] The \[y\] intercept will be \[\left( 0,-4 \right)\]
Note: \[y=mx+b\] is another form of the equation of point-slope form i.e. \[\left( y-{{y}_{1}} \right)=m\left( x-{{x}_{1}} \right)\]. The \[b\] in the equation \[y=mx+b\] is where the line crosses the \[y-axis\]. If we want to find out the slope-point equation, when the slope values and intercepts are given, we must be using \[\left( y-{{y}_{1}} \right)=m\left( x-{{x}_{1}} \right)\] to find the equation. When the graph is plotted the line passes through \[\left( 8,0 \right) and \left( 0,-4 \right)\]
Now let us plot the line equation we have \[x-2y=8\].
Complete step by step solution:
Now let us know more about the point-slope formula as we are going to apply it in our problem.
Point-slope form: It is the general form for the linear equations. It emphasizes the slope of the line and a point on the line which is not the \[y\] intercept. The general form of the point-slope form is \[y=mx+b\] where \[m\] denotes the slope and \[b\] denotes the \[y\] intercept.
Now let us proceed with the line equation given to us \[x-2y=8\].
On comparing it with the general form of the point-slope formula, we have to rearrange the given equation.
On rearranging we get,
\[-2y=-x+8\]
On evaluating for the \[y\] value, we get
\[y=\dfrac{1}{2}x-4\]
In order to find the \[x\] intercept, we have
\[y=\dfrac{1}{2}x-4=0\]
On solving, we get
\[\begin{align}
& \dfrac{1}{2}x=4 \\
& x=8 \\
\end{align}\]
\[\therefore \] The \[x\] intercept is \[\left( 8,0 \right)\]
To find out the \[y\] intercept, we have to substitute \[x=0\] into the equation.
\[\begin{align}
& y=\dfrac{1}{2}x-4 \\
& =\dfrac{1}{2}\left( 0 \right)-4 \\
& =0-4 \\
& =-4 \\
\end{align}\]
\[\therefore \] The \[y\] intercept will be \[\left( 0,-4 \right)\]
Note: \[y=mx+b\] is another form of the equation of point-slope form i.e. \[\left( y-{{y}_{1}} \right)=m\left( x-{{x}_{1}} \right)\]. The \[b\] in the equation \[y=mx+b\] is where the line crosses the \[y-axis\]. If we want to find out the slope-point equation, when the slope values and intercepts are given, we must be using \[\left( y-{{y}_{1}} \right)=m\left( x-{{x}_{1}} \right)\] to find the equation. When the graph is plotted the line passes through \[\left( 8,0 \right) and \left( 0,-4 \right)\]
Now let us plot the line equation we have \[x-2y=8\].
Recently Updated Pages
10 examples of friction in our daily life

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

Trending doubts
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

Difference between physical and chemical change class 11 chemistry CBSE

Draw a labelled diagram of the neuron and describe class 11 biology CBSE

What are derived physical quantities Give any two examples class 11 physics CBSE

