Answer
$y=\frac{1}{10}x+3$
Work Step by Step
Let $(x_{1},y_{1})=(0,3)$ and $(x_{2},y_{2})=(-5,2.5)$
Slope $m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}=\frac{2.5-3}{-5-0}=\frac{-0.5}{-5}=\frac{1}{10}$
Because the line crosses the y-axis at $(0,3)$,
Y-intercept $b=3$.
Equation of line in the slope-intercept form is
$y=mx+b$.
Substituting the values of $m$ and $b$, we get an equation of line as
$y=\frac{1}{10}x+3$
