ma8shl6eeanna
ma8shl6eeanna ma8shl6eeanna
  • 19-10-2016
  • Mathematics
contestada

What is the y- intercept of –3x – 9y = 18?
a. 2
b. -2
c. 6
d. -6

Respuesta :

Michaelia
Michaelia Michaelia
  • 19-10-2016
Sub. x=0:
-9y=18
y=-2

so the answer is b.
Answer Link
toporc
toporc toporc
  • 19-10-2016
Rearrange the equation to the form:
y = mx + b
where b is the y-intercept.
-3x - 9y = 18
-9y = 3x + 18
y = -(x/3) - 2.
The answer is b. -2.
Answer Link

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