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gwendolyn7
gwendolyn7 gwendolyn7
  • 19-01-2017
  • Mathematics
Answered

Match the numbers to the right category. (If you can, that would be awesome!) Thanks!

Match the numbers to the right category. (If you can, that would be awesome!) Thanks! class=

Verified Answer :

luke14444 luke14444
  • 19-01-2017

parallel: 1
perpendicular: 2, 4
neither: 3

two linear functions f1(x) = a1 x + b1 and f2(x) = a2 x + b2, are:
1/ parallel - if a1 = a2
2/ perpendicular - if a1*a2 = -1

-x + 4y = 20
4y = x + 20 /:4
y = 1/4 x + 5  //slope of the line -x + 4y = 20 is 1/4


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