Question

Plan A minutes: Plan B minutes:monday-10 monday-30tuesday-20 tuesday-40wednesday-30 wednesday-50thursday-40 thursday-60friday-50 friday-70Prove that linear functions grow by equal differences over equal intervals.

Answer 1

the linear function,

of plan A,

initital term a = 10

second term = 20

common difference = 20 - 10 = 10

for plan B

initial term a = 30

second term =40

the common difference = 40 - 30 = 10

thus the both linear function grow by equal difference over equal interevals.