##### Problem 1

The slope of this line is $$ \red 1 $$.

The y-intercept is $$ \blue{10} $$ so the slope intercept equation of this line is:

$ y = \red m x + \blue b \\ y = \red 1 x + \blue {10} $

##### Problem 2

The slope of this line is $$\red {\frac 1 3} $$.

The y-intercept is 20 so the slope intercept equation of this line is:

$ y = \red m x + \blue b \\ y = \red {\frac 1 3} x + \blue{20} $

##### Problem 3

The slope of this line is 2.

The y-intercept is 0 so the slope intercept equation of this line is:

- y = mx + b
- y = 2x