Math 1 · Unit 9 · Lesson 3 · part 5 of 5
Practice Problems
Try them, get help one step at a time, then print how it went.
Practice: try it, then get help one step at a time
Find r, write both rules, find a far term, and say what a function value means. Hint gives a nudge, Show next step shows one worked step at a time, Reveal answer checks, and Hide help / start over clears the card. Power first, then multiply.
My results
Finished the practice? Print a page that shows each question, what you typed or chose, the correct answer, and how it went. Good for showing a teacher or keeping in a folder.
Exit ticket
On paper or an index card. Use the math word and the plain-English word.
- Find r for 4, 12, 36, 108, and write the recursive rule.
- Write the explicit rule and find the 6th term.
- A sequence has r = 34. Do its terms grow or shrink? Will they reach 0?
- f(x) = 400 · (12)x. What does f(3) = 50 mean?
Check your exit ticket
- r = 3. a1 = 4, an = 3 · an − 1.
- an = 4 · 3n − 1. a6 = 4 · 243 = 972.
- Shrink (r is between 0 and 1). Never 0: a fraction of a positive number is still positive.
- After 3 halvings, 50 is left.