x-intercept - is where the graph of the equation crosses the x-axis, and where y=0. (x,0)
y-intercept - is where the graph of the equation crosses the y-axis, and where x=0. (0,y)
An equation in intercept form is:
[tex] \frac{x}{a} + \frac{y}{b} = 1[/tex]
Where a and b are the given x-intercept and y-intercept, respectively.