Linear Equations and Inequalities

When discussing Linear equations, we're referring to specific mathematical assertions that involve only first degree variables. These, when graphed, produce straight lines. On the other hand, Linear inequalities are much akin to their equation counterparts, but they utilize inequality symbols rather than equals. This suggests a spectrum of potential solutions. Both these concepts are absolutely essential when studying algebra and calculus.

Solving for a Variable

Scientists have found a relationship between the temperature and the height above a distant planet's surface. $T(h)$, given below, is the temperature in Celsius at a height of $h$ kilometers above the planet's surface. The relationship is as follows. \[ T(h)=48.5-2.5 h \] Complete the following statements. Let $T^{-1}$ be the inverse function of $T$. Take $x$ to be an output of the function $T$. That is, $x=T(h)$ and $h=T^{-1}(x)$. (a) Which statement best describes $T^{-1}(x)$ ? The ratio of the temperature (in degrees Celsius) to the number of kilometers, $x$. The height above the surface (in kilometers) when the temperature is $x$ degrees Celsius. The reciprocal of the temperature (in degrees Celsius) at a height of $x$ kilometers. The temperature (in degrees Celsius) at a height of $x$ kilometers. (b) $T^{-1}(x)=$ (c) $T^{-1}(33)=$

Calculating Slope and y-Intercept

The graph of a function $h$ is shown below. Use the graph of the function to find its average rate of change from $x=-3$ to $x=3$. Simplify your answer as much as possible.

Rewriting in Slope-Intercept Form

Rewrite the following equation in slope-intercept form: \(3x - 2y = 6\)

Solving Linear Equations

Solve the following linear equation: \( 3x - 7 = 2x + 5 \)

Finding Equations Using the Slope-Intercept Formula

If a line passes through the points (4,7) and (2,3), find the equation of the line using the slope-intercept formula.

Finding Equations Using Two Points

Given two points, (3, 7) and (5,11), find the linear equation that passes through these two points.

Finding a Perpendicular Line Containing a Given Point

Find the equation of the line perpendicular to the line \(3x - 2y = 6\) and passing through the point \((2,-1)\).

Finding the Slope

Question 32 \( 1 \mathrm{pts} \) What is the average rate of change over the interval [1, 10]? Equation \( A \) Equation \( B \) : \[ f(x)=15 x+13 \] A: 15; B: 0 A: 5; B: 15 \( A: 15 ; B: 5 \) A: O; B: 15

Finding a Parallel Line Containing a Given Point

Find the equation of the line parallel to the line \(3x - 4y = 8\) and passing through the point \((4,2)\).

Finding a Parallel Line to the Given Line

Find the equation of the line parallel to the line \(y = 3x + 2\) and passing through the point \((4, -2)\)

Finding a Perpendicular Line to the Given Line

Find the equation of the line perpendicular to the line \(3x - 2y = 6\) and passes through the point (1, 2).

Finding Ordered Pair Solutions

Find the ordered pair solution for the following linear equation: \(2x+3y=6\)

Using a Table of Values to Graph an Equation

4. Each table represents a proportional relationship. For each, find the constant of proportionality, and write an equation that represents the relationship. \begin{tabular}{|c|c|} \hline$s$ & $P$ \\ \hline 2 & 8 \\ \hline 3 & 12 \\ \hline 5 & 20 \\ \hline 10 & 40 \\ \hline \end{tabular} \begin{tabular}{|c|c|} \hline$d$ & $c$ \\ \hline 2 & 6.28 \\ \hline 3 & 9.42 \\ \hline 5 & 15.7 \\ \hline 10 & 31.4 \\ \hline \end{tabular} Constant of proportionality: Constant of proportionality: Equation: $P=$ Equation: $C=$

Finding the Equation Using Point-Slope Form

Find the equation of the line that passes through the points (4, -3) and (2, -1) using the point-slope form.