sandy005 sandy005

12-09-2019
Mathematics

contestada

The line passing through the point (-2,5)and (1,a) is perpendicular to the line 2x-y-5=0, find the value of a

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yellowyarn2003 yellowyarn2003

12-09-2019

Answer:

a = 7/2

Step-by-step explanation:

2x - y - 5 = 0

2x = y + 5

y = 2x - 5

m = -1/2

y - 5 = -1/2(x - (-2))

y - 5 = -1/2(x + 2)

y - 5 = -x/2 - 1

y = -x/2 + 4

a = -1/2 + 4

a = 7/2

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