Question

If a line crosses the y-axis at (0, 1) and has a slope of 4/5, what is the equation of the line?

Answer 1

The equation can be the y intercept equation of a line

y = mx + b

b = y-intercept = (0, 1)

b = 1

m = slope

can you show me the equation?

Answer 2

\[\frac{ y-y _{1} }{x-x _{1} } = m\]
\[\frac{ y-1 }{ x-0 } = \frac{ 4 }{ 5 }\]
\[5y-5=4x\]
so equation of line will be
\[4x-5y+5=0\]