Asked by Paige
what kind of function best models the data in the table use differences and ratios.
x y
0 4
1 5
2 8
3 13
4 20
x y
0 4
1 5
2 8
3 13
4 20
Answers
Answered by
Steve
differences:
1 3 5 7
2 2 2
so, the function is a quadratic
1 3 5 7
2 2 2
so, the function is a quadratic
Answered by
Reiny
x y 1stdiff -- 2nddiff
0 4
1 5 -- 1 -----
2 8 -- 3 ----- 2
3 13 --5 ----- 2
4 20 --7 ----- 2
since the 2nd difference is a constant, it must be a quadratic, or 2nd degree function
Answered by
Paige
Ok thank you!
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