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

Respuesta :

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

Answer:

B.- Only (-3,5)

Step-by-step explanation:

In an ordered pair the first coordinate is the [tex]x[/tex] coordinate, and the second coordinate corresponds to the [tex]y[/tex] coordinate.

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

the options are

  • [tex](-2,4)[/tex]

in this one [tex]x = -2[/tex], and [tex]y=4[/tex], so let's confirm:

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

  • [tex](-3,5)[/tex]

in this one [tex]x= -3[/tex] and [tex]y=5[/tex], let's also confirm:

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