at is the x-intercept of the line with the equation http://static.k12.com/bank_packages/files/media/mathml_821fedbbac96c7e59cd7c82fc9b94616ebef6886_1.gif

Question

anonymous · Answer

will give medal

anonymous · Answer

sorry spelling error at should be what

mathmate · Answer

X-intercept is the value of x when the line crosses the x-axis, i.e. when y=0.
To find the x-intercept, take the equation, substitute y=0 and solve for x.
Example:
Find x-intercept of y=5x-12
1. set y=0, => 5x-12=0
2. solve for x=12/5=2.4