# How do you write an equation of a line with slope 1/2 and y-intercept -3?

Nov 21, 2016

$y = \frac{1}{2} x - 3$

#### Explanation:

information given
slope is $m = \setminus \textcolor{red}{\frac{1}{2}}$
y-intercept is $b = \setminus \textcolor{b l u e}{- 3}$

application formula
slope-intercept $y = \setminus \textcolor{red}{m} x + \setminus \textcolor{b l u e}{b}$

calculation input
input values as coded $y = \setminus \textcolor{red}{\frac{1}{2}} x + \left(\setminus \textcolor{b l u e}{- 3}\right)$
simplify $y = \frac{1}{2} x - 3$