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| Math Central | Quandaries & Queries |
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Question from Bianca, a student: What is the x-intercept of the graph of y=1/2x+b? |
Hi Bianca.
The "x-intercept" is the point on the line where it intercepts the
x-axis. All the points along the x-axis have the value y=0, so
substitute that into your equation:
0 = 1/2x+b
and solve for x.
Cheers,
Stephen La Rocque.
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