The table gives a partial set of values of a polynomial h(x), which has a leading coefficient of 1. If every x-intercept of h(x) is shown in the table and has a multiplicity of one, what is the equation of the polynomial function?

The table gives a partial set of values of a polynomial hx which has a leading coefficient of 1 If every xintercept of hx is shown in the table and has a multip class=

Respuesta :

From the table, we were given the zero of the function h(x).

The zeros of the function are

[tex]-3,-2,\text{ and 1}[/tex]

The formula to obtain the equation of the function is,

[tex](x-a)(x-b)(x-c)[/tex]

Where

[tex]\begin{gathered} a=-3 \\ b=-2 \\ c=1 \end{gathered}[/tex]

Hence,

[tex]\begin{gathered} h(x)=(x--3)(x--2)(x-1) \\ h(x)=(x+3)(x+2)(x-1) \end{gathered}[/tex]

Expanding the function above

[tex]\begin{gathered} h(x)=x(x+2)+3(x+2)(x-1) \\ h(x)=x^2+2x+3x+6(x-1) \\ h(x)=x^2+5x+6(x-1) \\ h(x)=x(x^2+5x+6)-1(x^2+5x+6) \\ h(x)=x^3+5x^2+6x-x^2-5x-6 \\ h(x)=x^3+5x^2-x^2+6x-5x-6 \\ h(x)=x^3+4x^2+x-6 \end{gathered}[/tex]

Therefore, the equation of the polynomial function is

[tex]h(x)=x^3+4x^2+x-6[/tex]

Hence, the answer is Option 3.