Answer:
C. 2144
Step-by-step explanation:
I searched it up
Here the only limitation on the domain exists when the denominator is equal to zero, as division by zero has no meaning and is not "allowed" because of its meaninglessness. :)
Factor the denominator to find the excluded values of x...
3x^2+5x-12
3x^2+9x-4x-12
3x(x+3)-4(x+3)
(3x-4)(x+3)
So x CANNOT equal 4/3 or -3 (all other real values of x are part of the domain) so the domain is:
x=(-oo, -3),(-3, 4/3),(4/3, +oo)
X+y=48
2x+y=86
Because the first one is the amount and the second one is the cost
Y=KX+M
-9=(-3/9)*-3+m
-9=1+M
M=-10
Y=(-3/9)-10 is the answer
