What expressions are equivalent to -3*4/-5

Equivalent expressions have the same value for every possible value of

the variables they include.  5*(x-4) and 5*x - 20 are equivalent

expressions because no matter what the value of x, they are equal in  

value.

Equivalent equations are ones such that the truth of one implies and

is implied by the truth of the other.  (y-2)^2 = 0 and y = 2 are

equivalent equations, even though the expressions y and (y-2)^2 are

not equivalent expressions.

Step-by-step explanation:

the circle graph is not a function.

step-by-step explanation:

the graph of the circle is not a function.

because for a graph to be a function, each value of x must give one value of y

in the circle, the values of x for -2< x< 2 each give 2 values of y.

hence this is not a function.