Lizzyloves8910 Lizzyloves8910
  • 19-11-2018
  • Mathematics
contestada

if h(x)= -kx + 14 and h(2)=18, find the value of k

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wegnerkolmp2741o
wegnerkolmp2741o wegnerkolmp2741o
  • 19-11-2018

h(x)= -kx + 14

18 = -k*2 + 14   since x=2

18 = -2k +14

subtract 14 from each side

4 = -2k

divide by -2

-2 =k


Answer Link
jimrgrant1 jimrgrant1
  • 19-11-2018

k = - 2

evaluate h(2), equate to 18 and solve for k

h(2) = - 2k + 14 = 18 ( subtract 14 from both sides )

- 2k = 4 ( divide both sides by - 2 )

k = - 2


Answer Link

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