Answer:
7
Step-by-step explanation:
Answer: I need more evindence to answered it but I say its the third one
Step-by-step explanation:
I confirm with the answer that k is the slope of the graph<span>. If the variables x and y vary directly when x = 3 and y = 15, then: a. Write an equation that relates x and y.</span>
4+2x=10
2x=10-4
2x=6
X=6/2
X=3