Please help!
1. Evaluate the function for x = 2 and x = 7, when f(x) = -4x + 61
2. Tell whether the sequence is arithmetic. If it is, identify the common difference. ( 1/2, 1/3, 1/6, 0 … )
3. Tell whether the sequence is arithmetic. If it is, identify the common difference. (-3, -7, -10, -14 …)
4. You have a cafeteria card worth $50. After you buy lunch on Monday its value is $46.75. After you buy lunch on Tuesday, its value is $43.50. Write a rule to represent the amount on money left on the card as an arithmetic sequence. What is the value of the card after you buy 12 lunches?
5. What is the seventh term of an arithmetic sequence represented by the rule A(n) = -9 + (n-1)(.5)?
6. New grass seeds grow rapidly. A grass seed has grown to 0.3 millimeters tall. Tomorrow it will be 0.9 millimeters tall, the next day it will be 1.5 millimeters tall, and on the next day it will be 2.1 millimeters tall. Write a rule to represent the height of the bean plant as an arithmetic sequence. How tall will the plant be in 15 days?
3 answers
They are all just linear functions or arithmetic sequences.