We are asked to find the slopes of the given points and arrange them in increasing order.
Recall that the slope is given by
![m=(y_2-y_1)/(x_2-x_1)](https://img.qammunity.org/2023/formulas/mathematics/high-school/78uaqhwt0aws3qfwxigaftpihnmb1gzxtp.png)
Let us first find the slopes of the given points.
1. (15, 30) and (20, 40)
![m_1=(40-30)/(20-15)=(10)/(5)=2](https://img.qammunity.org/2023/formulas/mathematics/college/ruorma4s85ns21jozba1x88tfw3hn9p72v.png)
2. (12, 32) and (18, 48)
![m_2=(48-32)/(18-12)=(16)/(6)=(8)/(3)=2.67](https://img.qammunity.org/2023/formulas/mathematics/college/sxeytjl3i9romcsfeft3r2fyyo2wsl5kyt.png)
3. (27, 12) and (72, 32)
![m_3=(32-12)/(72-27)=(20)/(45)=(4)/(9)=0.44](https://img.qammunity.org/2023/formulas/mathematics/college/fajbrpn5e9i30txb0mes4kq581p80u0trm.png)
4. (45, 15) and (60, 20)
![m_4=(20-15)/(60-45)=(5)/(15)=(1)/(3)=0.33](https://img.qammunity.org/2023/formulas/mathematics/college/95wvhcymykflgk2ljv8e22kqdfsfbueq08.png)
5. (27, 2) and (243, 18)
![m_5=(18-2)/(243-27)=(16)/(216)=(2)/(27)=0.07](https://img.qammunity.org/2023/formulas/mathematics/college/ujfwvmifhf4msbuj5cjpz5ff8l0c8v483x.png)
6. (18, 63) and (24. 84)
![m_6=(84-63)/(24-18)=(21)/(6)=(7)/(2)=3.5](https://img.qammunity.org/2023/formulas/mathematics/college/ywv2h1puij5g8axgzhn6cb6fpgyql4nhih.png)
7. (63, 9) and (84, 12)
![m_7=(12-9)/(84-63)=(3)/(21)=(1)/(7)=0.14](https://img.qammunity.org/2023/formulas/mathematics/college/5lwklytwh7v1az2t9taxeoutaet5dskwa1.png)
Finally, let us arrange the slopes in increasing order (from least to greatest)
![\begin{gathered} m_5=0.07 \\ m_7=0.14 \\ m_4=0.33 \\ m_3=0.44 \\ m_1=2 \\ m_2=2.67 \\ m_6=3.5 \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/college/n4pmpy96avifhap201usbmrj5vmolf9wbi.png)
Therefore, the increasing order of the slopes is
m5 = 0.07 (27, 2) and (243, 18)
m7 = 0.14 (63, 9) and (84, 12)
m4 = 0.33 (45, 15) and (60, 20)
m3 = 0.44 (27, 12) and (72, 32)
m1 = 2 (15, 30) and (20, 40)
m2 = 2.67 (12, 32) and (18, 48)
m6 = 3.5 (18, 63) and (24. 84)