How do you find the x and y intercepts of x-y=4xy=4?

1 Answer
Feb 27, 2017

x-intercept: 44
y-intercept: -44

Explanation:

The x-intercept is the value of xx where the equation crosses the X-axis; note that the X-axis is the collection of points for which y=0y=0, so another way of saying this is: the x-intercept is the value of xx when y=0y=0
(x-y=4)(xy=4) with y=0 rarr (x-0=4) rarr (x=4)y=0(x0=4)(x=4)

Similarly, the y-intercept is the value of yy when x=0x=0
(x-y=4)(xy=4) with x=0 rarr (0-y=4) rarr (y=-4)x=0(0y=4)(y=4)