1.1 Cont. Give the first 4 terms of the sequence: a. b. Warm-up (IN)

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1.1 Cont. Give the first 4 terms of the sequence: a. b. Warm-up (IN) Learning Objective: to continue to find terms of sequences and then to find the sum of an arithmetic series Warm-up (IN) Give the first 4 terms of the sequence: a. b. 2. Write a rule for the nth term of the sequence: 6, 1, -4, -9, … 5, -2, -9, -16 -2, 8, 18, 28

Notes! Ex 1 – if find Ex 2 – find for 5, 11, 17, 23, …

First we need to find d Ex 3 – find if and Pretend… then… also… or…

Ex 4 – find the missing numbers in the arithmetic sequence 2, ____, ____, ____, 18 First we need to find d Arithmetic Series – The expression formed by adding the terms of an arithmetic sequence We can only find the sum if the series is finite 5+9+13+17+21+25 30 30 30x3 =90 30

Sum formula – Ex 5 – find 7+5+3+1+-1+-3+-5 W2L – the difference between a sequence and a series is… Ex 5 – find 7+5+3+1+-1+-3+-5 Ex 6 – find 12+15+18+21+…+42 First we need to find n

First we need to find the last term Ex 7 – find if

HW – finish worksheet Don’t forget about POW!! Out – find 8+5+2+-1+-4+-7+-10+-13 Summary – Today I learned how to… HW – finish worksheet Don’t forget about POW!!