Respuesta :

nataliechou123

Answer:

a=-2

So yep. ;)

Step-by-step explanation:

Alright, so, (2,12), 2 is the x and 12 is the y.

Stick them into the equation: [tex]12=a*2+(7*2)+2[/tex]

Then, solve:

[tex]12=a*2+14+2[/tex]

a = -2

So yes, they're on the graph.

Hope this helped! :)