Answer:
The answer is (not proportional)
Step-by-step explanation:
Let,
12x + 15y =34--------(1)
-6x + 5y =3-------(2)
(2) x 2 = -12x + 10y =6-------(3)
(3) + (1)
20y =40
y= 2
substitute y=2 into (1)
12x + 15(2) =34
12x =4
x= 1/3
keeping in mind that the solution to a system of equations is where the graphs of the equations meet or intersect, Check the picture below.
Answer:
f(x) = x^3 - 2
f(3) = 3^3 - 2 = 27 - 2 = 25