Chapter 9.8, Problem 4P

a.

To determine

To solve given equations using graphing calculator.

Answer to Problem 4P

The solutions are (1, 4) (0, 2)

Explanation of Solution

Given information :

Given equations,

  $\begin{array}{l}y=x^2-2\\ y=-x\end{array}$

Here we shall plot the graph for the given equations,

We get,

  

Green line represents the equation $y=x^2-2$

Blue line represents the equation $y=-x$

Hence the solutions are (1, 4) (0, 2)

b.

To determine

To describe the ways to solve the given equations.

Explanation of Solution

Given information :

Given equations,

  $\begin{array}{l}y=x^2-2\\ y=-x\end{array}$

There are a lot of ways to solve the given equation.

We may use substitution method, eliminating method etc.