Find the x- and y-intercept of the line.

5x – 4y = 40


x-intercept is 5; y-intercept is –4.

x-intercept is –4 ; y-intercept is 5.

x-intercept is –10; y-intercept is 8.

x-intercept is 8; y-intercept is –10.

1 answer

To find the x- and y-intercepts of the line given by the equation \(5x - 4y = 40\), we can systematically calculate each intercept.

Finding the x-intercept:

The x-intercept occurs where \(y = 0\). Substitute \(y = 0\) into the equation:

\[ 5x - 4(0) = 40 \] \[ 5x = 40 \] \[ x = \frac{40}{5} = 8 \]

So, the x-intercept is \((8, 0)\).

Finding the y-intercept:

The y-intercept occurs where \(x = 0\). Substitute \(x = 0\) into the equation:

\[ 5(0) - 4y = 40 \] \[ -4y = 40 \] \[ y = \frac{40}{-4} = -10 \]

So, the y-intercept is \((0, -10)\).

Summary of Intercepts:

  • x-intercept: 8
  • y-intercept: -10

Therefore, the answer is: x-intercept is 8; y-intercept is -10.