Question

How do you calculate constant rate of change from a proportional graph given the
coordinates (x, y)?
a. xy

b. x/y

c. y/x

d. y+x​

Answer 1

Answer:

y/x

Step-by-step explanation:

i just took the quizz and it was right ;)

Answer 2

Answer:

Option C) $\displaystyle\frac{y}{x}$

Step-by-step explanation:

Proportional relationship:

• Proportional relationships are relationships between two variables where their ratios are equivalent.
• In a proportional relationship, one variable is always a constant value times the other.
• $y \propto x\\y = ax\\\\\displaystyle\frac{y}{x} = a$

Thus, from a proportional graph, constant rate of change can be calculated with the help of ratio of y and x.

Option C) $\frac{y}{x}$

can be used to calculate constant rate of change,