Question

Help me please, I just need the table of values

Answer 1

Solution

Given the question in the image, the following are the solution steps to answer the question.

STEP 1: Write the given function

$y=x^4-3x^2-2$

STEP 2: Complete the table

x=-20

$\begin{gathered} f(x)=\left(-20\right)^4-3\left(-20\right)^2-2 \\ f(x)=158798 \end{gathered}$

When x = -18

$\begin{gathered} f(x)=\left(-18\right)^4-3\left(-18\right)^2-2 \\ f(x)=104002 \end{gathered}$

When x = -16

$\begin{gathered} f(x)=\left(-16\right)^4-3\left(-16\right)^2-2 \\ f(x)=64766 \end{gathered}$

When x = -14

$\begin{gathered} f(x)=\left(-14\right)^4-3\left(-14\right)^2-2 \\ f(x)=37826 \end{gathered}$

When x = -12

$\begin{gathered} f(x)=\left(-12\right)^4-3\left(-12\right)^2-2 \\ f(x)=20302 \end{gathered}$

When x = 12

$\begin{gathered} f(x)=12^4-3\cdot\:12^2-2 \\ f(x)=20302 \end{gathered}$

When x = 14

$\begin{gathered} f(x)=14^4-3\cdot\:14^2-2 \\ f(x)=37826 \end{gathered}$

Using this same method, the other f(x) are:

$\begin{gathered} x=16,f(x)=64766 \\ \\ x=18,f(x)=104002 \\ \\ x=20,f(x)=158798 \end{gathered}$