Why do graphs of proportional relationships pass through the origin?
1 answer:
You might be interested in
Answer:
y = 5x
Step-by-step explanation:
Given that y is directly proportional to x then the equation relating them is
y = kx ← k is the constant of proportionality
To find k use the condition that y = 30 when x = 6
k = =
= 5
y = 5x ← equation of proportion