Which expressions are equivalent to the expression 4a – 6b + 3c?

8a-12b+3c

Step-by-step explanation:

b. 4a+3(2b+c)

C. 2(2a-3b+c)+c

D. 2(2a-3b)+3c

Step-by-step explanation:

I did the math and took the test

guess at question:

a vertical line intersects the graph of g(x,y) = 0 at two points. what conclusion follows about the function f(x) implicitly defined by g(x,f(x)) = 0?

the domain of f(x) cannot include the x coordinate of any such vertical line.

informally, f(x) is not a function, and

g(x,y)=0 cannot be solved for y uniquely.

the relation r = {(x,y) such that g(x,y) = 0} is a function if

for all (a,b) ∊ r and (c,d) ∊ r, a=c implies b=d.

step-by-step explanation: