2.

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

5x – 4y = 40

1 answer

To find the x- and y-intercepts of the line represented by the equation \(5x - 4y = 40\), we can set up the following calculations:

  1. Finding the x-intercept: The x-intercept occurs when \(y = 0\).

    Substitute \(y = 0\) into the equation: \[ 5x - 4(0) = 40 \implies 5x = 40 \implies x = \frac{40}{5} = 8 \] Thus, the x-intercept is \((8, 0)\).

  2. Finding the y-intercept: The y-intercept occurs when \(x = 0\).

    Substitute \(x = 0\) into the equation: \[ 5(0) - 4y = 40 \implies -4y = 40 \implies y = \frac{40}{-4} = -10 \] Thus, the y-intercept is \((0, -10)\).

Summary:

  • The x-intercept is \((8, 0)\).
  • The y-intercept is \((0, -10)\).