write a rule for the function: x -2, -1, 0, 1, 2 y 1/3, 1, 3, 9, 27

Question

write a rule for the function:

x -2, -1, 0, 1, 2
y 1/3, 1, 3, 9, 27

in progress 0
Cora 4 weeks 2021-12-30T23:37:17+00:00 1 Answer 0 views 0

Answers ( )

    0
    2021-12-30T23:38:29+00:00

    Answer:

    y = 3^(x + 1).

    Step-by-step explanation:

    Here the y values are increasing by a factor 3  and when x = 0 y = 3,

    so  y =  (3)^1 when x = 0  – that is y = (3)^(0 + 1)  = 3.

    So y = 3^(x + 1)  is the rule.

    Check: when x = -2,  y = 3^(-2+1) = 3 ^-1 = 1/3.

    When x = 1, y = 3(1+1) = 3^2 = 9.

Leave an answer

45:7+7-4:2-5:5*4+35:2 =? ( )