In: Advanced Math
For the following exercises, use the given information about the polynomial graph to write the equation.
Degree 5. Double zero at x = 1, and triple zero at x = 3. Passes through the point (2, 15).
Consider the information provided in the exercise,
The degree is 5 and zeros are at x = 1, x = 3.
The first zero occurs at x = 1. It has a multiplicity of 2.
The second zero occurs at x = 3. It has a multiplicity of 3.
Combine all this,
f(x) = a(x – 1)2(x – 3)3
To determine stretch factor a, put the point (2, 15) in the equation.
15 = a(2 – 1)2(2 – 3)3
15 = -a
a = -15
Hence, the function is f(x) = -15(x – 1)2(x – 3)3.
Hence, the function is f(x) = -15(x – 1)2(x – 3)3.