The constant of proportionality k is given by k=y/x where y and x are two quantities that are directly proportional to each other. Once you know the constant of proportionality you can find an equation representing the directly proportional relationship between x and y, namely y=kx, with your specific k. (i looked up this explanation but not sure if it’s right.. if it’s wrong let me know:) )
Day 3 is A because it tell how many pieces of candies eaten in a minute. Day 4 is 10 and 15 because the ratios go in a pattern by 5 Day 5 is D but I really dont know that one
To find the slope of a line, you would find the change in y over the change in x, where the rise of a slope is defined by the y coordinate and the run of the slope is defined by x.
