The value of A in the graphed line is A = -9
-9x - 3y = -15
How to find the value of A?
The line equation of the shown line is:
Ax - 3y = -15
To find the value of A, we can replace any point in the line in the equation, and then solve the equation for A.
We can see the point (2, -1), replacing these values we will get:
A*2 - 3*-1 = -15
2A + 3 = -15
2A = -15 - 3
A = -18/2
A = -9
That is the value of A.