meredith48034
meredith48034 meredith48034
  • 13-08-2019
  • Mathematics
contestada

what is a direct variation equation going through (-4,4)?

a. y=4x
b. y=x
c. y=-x
d. y=-4x​

Respuesta :

19allenethm
19allenethm 19allenethm
  • 13-08-2019

Answer:

c. [tex]y=-x[/tex]

Step-by-step explanation:

We can find this by substituting in our ordered pair (-4,4) into each equation to see if we get the same value on each side

a. [tex]y=4x\\\\4=4(-4)\\\\4=-16[/tex]

A it is not the right equation

b. [tex]y=x\\\\4=-4[/tex]

B it is not the right equation

c. [tex]y=-x\\\\4=-(-4)\\\\4=4[/tex]

C is the right equation

d. [tex]y=-4x\\\\4=-4(-4)\\\\4=16[/tex]

Dis not the right equation

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