Answer:
![Ay=15](https://img.qammunity.org/2021/formulas/mathematics/middle-school/c8et0hmeo04parq7idzf97hrbvpx0corw6.png)
Explanation:
we know that
The formula of slope is "rise over run", where the "rise" (means change in y, up or down) and the "run" (means change in x, left or right)
Let
Ay ----> change in y
Ax ----> change in x
The formula to calculate the slope between two points is equal to
![m=(y2-y1)/(x2-x1)](https://img.qammunity.org/2021/formulas/mathematics/high-school/s22vchztbo0z3zfbr5dy5rbx0ndd5ffwx5.png)
where
![Ay=y2-y1](https://img.qammunity.org/2021/formulas/mathematics/middle-school/glk0wg1824pjvw9fzzcdbtfpml4wmxrhsa.png)
![Ax=x2-x1](https://img.qammunity.org/2021/formulas/mathematics/middle-school/7ywyd6i31qic2rd2fw5207112krel2778h.png)
In this problem we have the ordered pairs
(-3,-5) and (0, 10)
so
![Ay=10-(-5)=15](https://img.qammunity.org/2021/formulas/mathematics/middle-school/j6d1osv30bpv3z0utboxdk7fj7460ykb2h.png)