megan050109
contestada

What is the equation for an arithmetic sequence with a first term of 7 and a second term of 3? (5 points)


an = 7 − 4(n − 1)

an = 7 + 4(n − 1)

an = 7 − 3(n − 1)

an = 7 + 3(n − 1)

Respuesta :

Answer:

1st option

Step-by-step explanation:

the equation for an arithmetic sequence is

[tex]a_{n}[/tex] = a₁ + (n - 1)d

where a₁ is the first term and d the common difference

here a₁ = 7 and d = a₂ - a₁ = 3 - 7 = - 4 , then

[tex]a_{n}[/tex] = 7 - 4(n - 1)

zibahkeshiro

Answer:

The answer is option A

Step-by-step explanation:

The solution is in the image

Ver imagen zibahkeshiro