The number of calories burned by a 90-pound cyclist is proportional to the number of hours the cyclist rides. The equation to represent this relationship is y = 225x. What is the constant of proportionality? A:135

B:225

C:315

D:90

The constant of proportionality is 225

Step-by-step explanation:

Given

Required

Determine the constant of proportionality (k)

A direct proportion is represented as:

Where k is the constant of proportionality

By comparing:

to

Hence:

plants store their excess carbohydrate in the form of starch so that it could be used as energy source later on. the excess carbohydrate is converted into starch in the plastid i.e. chloroplast & this process occurs in the presence of sunlight. it is an insoluble polymer of glucose which gets stored in cell organelles named as amyloplasts. in some plants, starch is also stored in roots and embryos.