Constant of Proportionality

Front

What is the constant of proportionality?

Back

The constant of proportionality is the ratio between two proportional quantities, often represented as 'k' in the equation y = kx.

Tags

CCSS.7.RP.A.2B

Front

How do you find the constant of proportionality from a graph?

Back

To find the constant of proportionality from a graph, identify two points on the line, (x1, y1) and (x2, y2), and calculate k = y/x for either point.

Tags

CCSS.7.RP.A.2B

Front

If Johnny saved $168 over 12 months, what is his rate of savings per month?

Back

$14.00 per month.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What is the formula to calculate speed?

Back

Speed = Distance / Time.

Tags

CCSS.6.RP.A.3B

Front

If a race car driver traveled 500 miles in 3.25 hours, what is his mean rate of speed?

Back

158.7 mph.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What does the point (1, 2) represent in a cost graph for a dry cleaning service?

Back

It means the dry cleaning service charges $2 per shirt.

Tags

CCSS.7.RP.A.2C

Front

In the equation s = kp, what does 'k' represent?

Back

'k' represents the constant of proportionality, indicating how many scoops of food (s) correspond to each pound of dog weight (p).

Tags

CCSS.7.RP.A.2C

Front

If a dog weighs 30 pounds and the constant of proportionality is 2/15, how many scoops of food should it get?

Back

4 scoops of food.

Tags

CCSS.7.RP.A.3

Front

What is the relationship between distance and time in a proportional relationship?

Back

In a proportional relationship, as time increases, distance increases at a constant rate.

Tags

CCSS.7.RP.A.2D

Front

If Linda rides her bike for 1 hour and travels 12 miles, what is her speed?

Back

12 miles per hour.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2