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[Solved] Finding the point that intersects the x-axis

 
Lines & Angles
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June 15, 2021 3:13 pm
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Staff 
(@armor)
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A line has a slope of and intersects the point (-12, -39). At which point does this line intersect the x-axis?

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June 15, 2021 3:13 pm
Topic starter
Staff 
(@armor)
Admin
  Honorable Member
317 Posts
156 153 0

Use the information given to find the equation of the line:

\small y=\frac{3}{4}x+b

\small -39=\frac{3}{4}(-12)+b

\small -39=-9+b\Rightarrow b=-30.

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