# Activities 2

## 2.1)

Find the slope and the $y$-intercept of the line that goes through the following points. Write the function in the form $f\left(x\right)=ax+b$.

a)
The points $\left(1,3\right)$ and $\left(3,7\right)$
b)
The points $\left(2,4\right)$ and $\left(0,0\right)$
c)
The points $\left(0,3\right)$ and $\left(9,30\right)$
d)
The points $\left(15,25\right)$ and $\left(7,17\right)$

## 2.2)

Find the slope and the $y$-intercept of the line that goes through the following points. Write the function in the form $f\left(x\right)=ax+b$.

a)
The points $\left(-5,0\right)$ and $\left(2,14\right)$
b)
The points $\left(3,-2\right)$ and $\left(1,6\right)$
c)
The points $\left(2,3\right)$ and $\left(7,-12\right)$
d)
The points $\left(7,25\right)$ and $\left(15,17\right)$

You can find the solutions here.