To find the y-intercept of the function fx = 4x – 12, we need to determine the point where the graph crosses the y-axis. A graph crosses the y-axis when the value of x is 0.
To find the y-intercept, we can substitute x = 0 into the equation:
f(0) = 4(0) – 12
This simplifies to:
f(0) = -12
Thus, the y-intercept is -12. In coordinate terms, this point is represented as (0, -12).
To summarize, the y-intercept of the graph of the equation fx = 4x – 12 is -12.