Question

Please help me with this, i just need to solve "b". Ty!

Answer 1

Answer:

15

Step-by-step explanation:

To find the rate of change, find the slope

Slope= $\frac{y_{2}-y_{1}}{x_{2}-x_{1}}$

        $=\frac{35-20}{2-1}\\\\=\frac{15}{1}\\\\=15$