Answers

2015-09-22T21:09:49+08:00
3x+4=ky-2 3(4)+4=k(4-2) 12+4=k(2) [16+2k]1/2 16/2 = 2k/2 K=8 3x+4=8(10-2) 3x+4=8(8) 3x+4=64 3x=64-4 3x=60 1/3[3x=60] 3x/3=60/3 X=20 Checking: 3(20)+4=8(10-2) 60+4=8(8) 64=64✔
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  • Brainly User
2015-09-22T22:48:53+08:00
Variation Equation:
3x+4 = k (y-2)

x = 4; y=4

3(4) + 4 = k (4-2)
12 + 4 = k (2)
16 = k(2)
16/2 = 2k/2
k = 8

x = ? ; y = 10
3x + 4 = k(y-2)

3x + 4 = 8(10-2)
3x + 4 = 8(8)
3x + 4 = 64
3x + 4 -4 = 64 - 4
3x = 60
3x/3 = 60/3
x = 20, Final Answer

To check when y=10, and x = 20
3(20) + 4 = 8 (10-2)
60 + 4 = 8 (8)
64 = 64
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