Respuesta :

llTheBrainll

Answer:

[tex]y = - 3x + b \\ 4 = - 3 \times ( - 2) + b \\ 4 = 6 + b \\ 4 - 6 = b \\ b = - 2[/tex]

mhanifa

Answer:

#1

Substitute coordinates and sole for b:

  • y = -3x + b
  • (x, y) = (-2, 4)
  • 4 = -3(-2) + b
  • 4 = 6 + b
  • b = 4 - 6
  • b = -2

#2

  • y = kx

Use the point (2, 4) to find the coefficient k:

  • 4 = 2k ⇒ k = 2

Find the missing values:

  • x = -5 ⇒ y = 2(-5) = -10
  • x = -1/2 ⇒ y = 2(-1/2) = -1
  • x = 0 ⇒ y = 2(0) = 0
  • y = 16 ⇒ x = 16/2 = 8
  • y = 1/4 ⇒ x = (1/4)/2 = 1/8

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