Question

is this the correct cubic formula and substitution method?

Answer 1

To calculate the algebraic rule for the sequence of numbers, the values for n and c in the table above must be substituted into the cubic equation y = ax^3 + bx^2+ cx + d.
1 = a(1)3 + b(1)2+ c(1) + d.
1 = a + b + c + d.

Answer 2

*x and y