Questions: Lines and Functions
Finding x - and y-intercepts of a line given the equation: Basic
Find the y-intercept and x-intercept of the line.
x-4 y=8
y-intercept:
x-intercept:
Transcript text: Lines and Functions
Finding $x$ - and $y$-intercepts of a line given the equation: Basic
Find the $y$-intercept and $x$-intercept of the line.
\[
x-4 y=8
\]
$y$-intercept: $\square$
$x$-intercept: $\square$
Solution
Solution Steps
To find the intercepts of the line given by the equation \(x - 4y = 8\), we need to determine where the line crosses the x-axis and y-axis. The y-intercept is found by setting \(x = 0\) and solving for \(y\). The x-intercept is found by setting \(y = 0\) and solving for \(x\).
Step 1: Finding the y-intercept
To find the y-intercept, we set \(x = 0\) in the equation \(x - 4y = 8\):
\[
0 - 4y = 8
\]
Solving for \(y\), we get:
\[
-4y = 8 \implies y = -2
\]
Thus, the y-intercept is \(-2\).
Step 2: Finding the x-intercept
To find the x-intercept, we set \(y = 0\) in the equation \(x - 4y = 8\):
\[
x - 4(0) = 8
\]
This simplifies to:
\[
x = 8
\]
Thus, the x-intercept is \(8\).
Final Answer
The y-intercept is \(\boxed{y = -2}\) and the x-intercept is \(\boxed{x = 8}\).