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dimaraw [331]
3 years ago
8

Write an expression to describe the sequence below. Use n to represent the position of a term in the sequence, where n = 1 for t

he first term. -10, -20, -30, -40, ...
Mathematics
1 answer:
Olin [163]3 years ago
8 0

Answer:

+- 10n

Step-by-step explanation:

✯Hello✯

↪  We need to work out the nth term rule

↪  We can do this by finding the differences between the numbers and using the rules

2A

3A+B

A+B+C

↪  (Sorry I cant draw a table for you)

↪  Using the rules and drawing a table we get the final answer

+- 10N

❤Gianna❤

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T_5(x)=\dfrac3{0!}+\dfrac2{1!}(x-1)-\dfrac{12}{2!}(x-1)^2-\dfrac{12}{3!}(x-1)^3+\dfrac{48}{4!}(x-1)^4+\dfrac{120}{5!}(x-1)^5

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Another way of doing this would be to solve for the coefficients a,b,c,d,e,g in

f(x)=a+b(x-1)+c(x-1)^2+d(x-1)^3+e(x-1)^4+g(x-1)^5

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