Question

Diep buys a loaf of bread 65 centimeters long. For lunch every afternoon, he cuts 15 centimeters of bread for his sandwich. Diep wants to determine the length of the loaf of bread, l, after d days. What is the equation of the scenario? Is the graph of the equation continuous or discrete?

Answer 1

if he cuts 15 cm per day, d, then after d days, 15*d cm is gone

subtract this from the original length of the bread to get an equation for the total length in terms of d

now, whether it's continuous or discrete: can d take on any value within the range? (continuous) or is it limited to certain points? (discrete). think about what d represents.