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Find the equation of a straight line parallel to the line 2x - y =...

Mathematics
JAMB 2022

Find the equation of a straight line parallel to the line 2x - y = 5 and having intercept of 5

  • A. 2x + y = 5
  • B. 2x + y = -5
  • C. 2x - y = -5
  • D. 2x - y = 5
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Correct Answer: Option C
Explanation

Condition for Parallelism means that their gradient value is same

line 2x - y = 5 is rearranged

As y = 2x - 5 from y = mx + c

: line 2x - y = 5 has the gradient of 2

A parallel line with gradient of 2 and intercept of 5

→ 2x - y = -5

Rearranged as y = 2x + 5

There is an explanation video available below.


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Explanation Video

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