Question

Evaluate the polynomial when a x equals 0 and b x equals negative 1

Answer 1

Consider the given poynomial,

`P(x)=3x-8`

(a)

Substitute x=0 in the polynomial,

`\begin{gathered} P(0)=3(0)-8 \\ P(0)=0-8 \\ P(0)=-8 \end{gathered}`

Thus, 3x-8 is equal to -8 when 'x' equals 0.

(b)

Substitute x=-1 in the polynomial,

`\begin{gathered} P(-1)=3(-1)-8 \\ P(-1)=-3-8 \\ P(-1)=-11 \end{gathered}`

Thus, 3x-8 is equal to -11 when 'x' equals -1.