Question

What are the x-intercept and y-intercept of a linear equation?
What are their coordinates on a graph?
How can they be used to graph a line?
Demonstrate by determining the intercepts of "14x + 7y = 21."

Answer 1

http://www.purplemath.com/modules/intrcept.htm
The x intercept is the location where the function crosses the x axis
The y intercept is the location where the function crosses the y axis