Question

Identify the value of a if y= ax+ 7x + 2 and the point (2, 12) is on the graph.

Answer 1

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: $12=a*2+(7*2)+2$

Then, solve:

$12=a*2+14+2$

a = -2

So yes, they're on the graph.

Hope this helped! :)