Find the y-intercept of y = 4x - 64.
y intercept, when x=0
y=-64
To find the y-intercept of a linear equation, you need to understand that the y-intercept is the value of y when x is equal to 0. In other words, it is the point where the line crosses the y-axis.
Given the equation y = 4x - 64, we can see that the coefficient of x is 4 and the constant term is -64.
Since the y-intercept occurs when x is 0, we can substitute x = 0 into the equation to find the corresponding y value:
y = 4(0) - 64
y = -64
Therefore, the y-intercept is -64.