Asked by Leanna
If f is a polynomial function of degree 3 with the numbers 4,5, and -6 as zeros, and if f(1)=-210, determine the formula for f(x).
Answers
Answered by
Reiny
let the equation be
y = a(x-4)(x-5)(x+6)
f(1) = -210
-210 = a(-3)(-4)(7)
a = -210/84 = -5/2
f(x) = (-5/2)(x-4)(x-5)(x+6)
y = a(x-4)(x-5)(x+6)
f(1) = -210
-210 = a(-3)(-4)(7)
a = -210/84 = -5/2
f(x) = (-5/2)(x-4)(x-5)(x+6)
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