Two linear functions are graphed. The slope of function is greater than 0. It intersects the x-axis and the y-axis at (0,-4). Consider the graph of $y=x-4$.

State the coordinates of the $x$-intercept in the form $(a, b)$.

Please directly answer the question and provide the final value, e.g., 1, 2.5, 300.
Question: Two linear functions are graphed. The slope of function is greater than 0. It intersects the x-axis and the y-axis at (0,-4). Consider the graph of $y=x-4$.

State the coordinates of the $x$-intercept in the form $(a, b)$.

Please first conduct reasoning, and then answer the question and provide the final value, e.g., 1, 2.5, 300, at the end.
Question: Two linear functions are graphed. The slope of function is greater than 0. It intersects the x-axis and the y-axis at (0,-4). Consider the graph of $y=x-4$.

State the coordinates of the $x$-intercept in the form $(a, b)$.
