Question

Which ordered pair is a solution of the equation?

y=-3x-4
Choose 1 answer:

(Choice A)
A
Only (-2,4)

(Choice B)
B
Only (-3,5)

(Choice C)
C
Both (-2,4) and (-3,5)

(Choice D)
D
Neither

Answer 1

It’s B because 5 = -3(-3) - 4
5=9-4
Just plug in the numbers and see what works

Answer 2

B.- Only (-3,5)

Explanation:

In an ordered pair the first coordinate is the
`x` coordinate, and the second coordinate corresponds to the
`y` coordinate.

Then we must substitute the given value of
`x` in the equation and verify that we get in return the defined value for
`y`.

the options are

• 
  `(-2,4)`

in this one
`x = -2`, and
`y=4`, so let's confirm:

`y=-3x-4\\y=-3(-2)-4\\y=-6-4\\y=2`this is not a solution since the
`y` values are not the same.

• 
  `(-3,5)`

in this one
`x= -3` and
`y=5`, let's also confirm:

`y=-3(-3)-4\\y=9-4\\y=5`in this one the values for
`y` are equal, this is a solution for the equation.