The slope can be said to be the cahnge in the values of y divide by the change in the values of x.
To find the slope, apply the slope formula below:
![m=(y2-y1)/(x2-x1)](https://img.qammunity.org/2023/formulas/mathematics/high-school/wt3vklmulg2853jxzclws9uvfaplhmpgv7.png)
From the given graph, take the points on the line:
(x1, y1) ==> (10, 80)
(x2, y2) ==> (30, 90)
Input values into the formula and solve for m.
Thus, we have:
![\begin{gathered} m=(90-80)/(30-10) \\ \\ m=(10)/(20) \\ \\ m=(1)/(2) \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/college/1bdjuyt8y233ub50nvme7pa5a6j7fitj5q.png)
Therefore, the slope is ½
ANSWER:
![(1)/(2)](https://img.qammunity.org/2023/formulas/mathematics/high-school/geika1bebdh49vlmy8m866aot9b5u0n47d.png)