5x - y = 3
4x - 2y = 3
i need to use substitution for this one. ?

(x,y)= (1/2,-1/2)

Step-by-step explanation:

y=-3+5x

4x-2y=3

4x-2(-3+5x)=3

x=1/2

y=-3+5*1/2

y=-1/2

sample answer: you can determine whether each element of the domain is paired with exactly one element of the range. for example, if given a graph, you could use the vertical line test; if a vertical line intersects the graph more than once, then the relation that the graph represents is not a function.

answer is  

c.

36

step-by-step explanation: