Posted by Bobby on Monday, April 9, 2012 at 10:33am.
Find the particular equation of the cubic function that contains (2,35), (1,7), (2,9), and (3,25)

Math  Steve, Monday, April 9, 2012 at 12:03pm
sheesh! What a lot of busy work.
Let y = ax^3 + bx^2 + cx + d
8a + 4b  2c + d = 35
a + b + c + d = 7
8a + 4b + 2c + d = 9
27a + 9b + 3c + d = 25
solve by your favorite method. Mine is wolframalpha :)
(a,b,c,d) = (2,5,3,7)
y = 2x^3  5x^2 + 3x + 7
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