Find Missing Values
1. **State the problem:**
Given the function $y=\frac{4}{x^2+x}$ and the corresponding table of $x$ and $y$ values:
$x:$ -2, -1.5, -1.2, -1, -0.8, 1, 1.5, 2, 3, 4
$y:$ -1, 0.3, L, m, 5.5, n, 3.3, 3, p, 4.3
We need to find the missing values $L$, $m$, $n$, and $p$.
2. **Calculate each missing $y$ value by substituting the given $x$: **
$$y = \frac{4}{x^2 + x}$$
- For $x = -1.2$ (find $L$):
$$L = \frac{4}{(-1.2)^2 + (-1.2)} = \frac{4}{1.44 - 1.2} = \frac{4}{0.24} = 16.67$$
- For $x = -1$ (find $m$):
$$m = \frac{4}{(-1)^2 + (-1)} = \frac{4}{1 - 1} = \frac{4}{0}$$
This is undefined because division by zero is not possible. So, \textbf{$m$ is undefined}.
- For $x = 1$ (find $n$):
$$n = \frac{4}{1^2 + 1} = \frac{4}{1 + 1} = \frac{4}{2} = 2$$
- For $x = 3$ (find $p$):
$$p = \frac{4}{3^2 + 3} = \frac{4}{9 + 3} = \frac{4}{12} = 0.333$$
3. **Summary of missing values:**
- $L = 16.67$
- $m$ is undefined (division by zero)
- $n = 2$
- $p = 0.333$
Hence, the values of $L$, $m$, $n$, and $p$ in the table are respectively:
$16.67$, undefined, $2$, and $0.333$