2.1)

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

a)

The points $(1,3)$ and $(3,7)$

b)

The points $(2,4)$ and $(0,0)$

c)

The points $(0,3)$ and $(9,30)$

d)

The points $(15,25)$ and $(7,17)$

2.2)

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

a)

The points $(-5,0)$ and $(2,14)$

b)

The points $(3,-2)$ and $(1,6)$

c)

The points $(2,3)$ and $(7,-12)$

d)

The points $(7,25)$ and $(15,17)$

You can find the solutions here.