Answer:
tain, duc, viv, graph
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
Answer: b
Step-by-step explanation: hope this helps
y = kx
'k' is the constant of proportionality, or otherwise known as constant of variation.
y = 90
x = 3
90 = k(3)
90 = 3k
3k/3 = 90/3
k = 30
The constant of proportionality is 30.
