Math Assesment 4

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Delta Math Summation

2*Σ (top = 3), t =0, (-2t+t^2)

Delta Math Summation

2Σ (top = 7), t =3, (-8 + t^2)

Sequences s5 p3 ext

A student said the recursive definition for sequence ( 6,12,18,24,30) a(n+1) = an + 6. Is the student correct? Explain why or why not?

Sequences s7 pC

An = 2a(n-1) - (a(n-2))^2 a1 = 2 a2 - 5. Write the recursive definition and the first 8 terms

Sequences s7 pD

An = a(n-1) + a(n-2) Write the recursive definition and the first 8 terms

Sequences s7 pB ext

Can a student find the first 8 terms of the recursive an = a(n-1) + a(n-2) and a1 = 2?

Sequences s8 p1

Create three different visualizations for this. (2 visual and one mathematical)

Sequences s10 2b

Expand and show sum (in sigma notation) (not need to find it) Σ (top = 5), k=1, 9 * (2/3)^k

Sequences s10 2c

Expand and show sum (in sigma notation) (not need to find it) Σ (top = 9), k=3, (k+2)/(k-2)

Sequences s8 p2

Find the sum of 100 integers (use the method we learned with Sn)

Sequences s8 p3

Find the sum of Sn sequence (1,2,3...n-2,n-1,n)

Sequences s8 p6

Find the sum of first 5 integers of the sequence 2,4,8,16,32,64... If it is not possible explain why.

Delta Math arithmetic

Find the value of a67 for sequence -17,-23,-29

Delta Math geometric

Find the value of a9 for sequence 9,27,81

Delta Math arithmetic

Find the value of a96 for sequence -30,-32,-34

Sequences s5 p10

For sequence -1/4, 1/2,-1,2, -4, 8, ____,____ Write out the recursive definition, describe the formula, and the explicit formula, and fill out the last two blanks.

Sequences s5 p12

For sequence -32,16, -8, 4, ____,____ Write out the recursive definition, describe the formula, and the explicit formula, and fill out the last two blanks.

Sequences s5 p1

For sequence 19,15,11,7,3,-1, ____, ____ Write out the explicit formula. recursive definition, describe the formula

Sequences s5 p3

For sequence 6,12,18,24,30, ____,____ Write out the recursive definition, describe the formula and fill out the last two blanks.

Sequences s10 3

How do we know if a series is an arthmetic series?

Sequences s3 p3

If the first term in an arithmetic sequence is a1 and the common difference is d, what is the formula for an A student wrote the formula rn = a1 + d(n-1), where a1 is the value for the first term and d is the difference. Explain there thinking

Sequences s3 p4

If you know the fifth number in an arithmetic sequence is 5 and the eleventh number is 71, come up with a formula for the nth term.

Sequences s4 p7

If you know the first number in a geometric sequence is a1 and the common ration is r, come up with a formula for the nth term.

Sequences s3 p1

If you know the first number in an arthmetic sequence is 5 and each term in the sequence goes up by 3, come up with a formula for th nth term. (check the formula knowing that the fourth term is 14)

Sequences s4 p11

If you know the third number in a geometric sequence is 54 and the fifth number is 486, come up with a formula for the nth term.

Sequences s4 p11 ext

If you know the third number in a geometric sequence is 54 and the fifth number is 486, come up with a formula for the nth term. How many different equations could one write for this problem? Why?

Sequences s8 p6 ext

Why does the method to find a specific number in a sequence not work for geometric sequences?

Sequences s9 6b

Write an equation to find the sum of a sequence of numbers. For which type of series could the equation be used for an why?

Sequences s11 1

Write terms in summation (don't need to calculate full thing)

Sequences s11 2a

Write terms in summation notation

Sequences s11 2b

Write terms in summation notation

Delta Math explicit formula

Write the equation for sequence 33,28,23

Delta Math explicit formula

Write the equation for sequence 6,-30,150

Sequences s10 1a

Write two different equations for the series

Sequences s10 1b

Write two different equations for the series

Sequences s10 1c

Write two different equations for the series

Delta Math recursive sequences

a1 = 3 an+1 = 5an -3. what is a4?

Delta Math recursive sequences

a1 = 5, a2 -1 an = 2an-1 + an-2. What a4

Sequences s3 p5

if you know the fifth number in an artmetic sequence is 5.2 and the eleventh number is -9.4, come up with a formula for the nth term.

Delta Math Summation

Σ (top = 6), t =1, (-9t + 3t^2)


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