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What are the first four terms of the sequence modeled by the recursive formula an=an-1+5 when a1=-3?

A) –3, –8, –13, –18
B) –3, 2, 7, 12
C) –3, –15, –75, –375
D) –3, 1, 5, 9

What are the first four terms of the sequence modeled by the recursive formula anan15 when a13A 3 8 13 18 B 3 2 7 12 C 3 15 75 375 D 3 1 5 9 class=
What are the first four terms of the sequence modeled by the recursive formula anan15 when a13A 3 8 13 18 B 3 2 7 12 C 3 15 75 375 D 3 1 5 9 class=

Respuesta :

Given sequence: [tex]a_n=a_{n-1}+5[/tex]

[tex]a_1= -3.[/tex].

We need to find first four terms of the sequence.

We already given first term -3.

Let us find second term [tex]a_2[/tex].

Plugging n=2.

[tex]a_2=a_{2-1}+5 = a_1+5= -3+5 = 2.[/tex]

Now taking n=3.

[tex]a_3=a_{3-1}+5 = a_2+5= 2+5 = 7[/tex].

Now, n=4.

[tex]a_4=a_{4-1}+5 = a_3+5= 7+5 = 12[/tex].

We got terms -3, 2, 7 and 12.

Therefore, correct option is B) –3, 2, 7, 12.

Answer:

b . _3,2,7,12

Step-by-step explanation:

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