Chapter 5.2, Problem 7PSA

To determine

To Find: The slope of $\overleftrightarrow{RS}$ to the nearest tenth.

Answer to Problem 7PSA

  $\text{Slope of line joining }\overleftrightarrow{RS}\text{is}m=0.4$

Explanation of Solution

Given:

  

Concept Used:

  $\text{Slope of line joining }\left(x_1,y_1\right)\text{and}\left(x_2,y_2\right)\text{is}m=\frac{y_2-y_1}{x_2-x_1}$

Calculation:

Here, we have points $\text{R}\left(\text{10}\text{.1, 1}\text{.2}\right)\text{ and S}\left(\text{17}\text{.3, 4}\text{.1}\right)$ lying on the line $\overleftrightarrow{RS}$

  $\text{Slope of line joining R}\left(\text{10}\text{.1, 1}\text{.2}\right)\text{ and S}\left(\text{17}\text{.3, 4}\text{.1}\right)\text{is}m=\frac{4.1-1.2}{17.3-10.1}=\text{0}\text{.4027}=0.4$