Question

50 POINTS!! EASY!

Answer 1

Answer:

-16 & 40

Step-by-step explanation:

When x = 8

y = -2 × 8

y = -16

When y = -20

x = -2 × -20

x = 40

Answer 2

9514 1404 393

Answer:

• y = -16
• x = 10

Step-by-step explanation:

The direct proportion equation is ...

  y = kx

where k is the constant of proportionality. Here, you're told k=-2, so the equation is ...

  y = -2x

For x=8, the value of y is ...

  y = -2(8) = -16 . . . . . do the multiplication

For y = -20, the value of x is ...

  -20 = -2x

  10 = x . . . . . . . . . divide both sides by -2