What is the equation?

Answer:
y=-2+4
Step-by-step explanation:
we know the y intercept is four, so we can plug that into y=mx+b
so far we know y=mx+4
and the equation for finding slope is [tex]\frac{y_{2} -y_{1} }{x_{2} -x_{1} }[/tex]
so let's find two points on the graph
let's make it easy on ourselves and use the points laid out for us
(0,4) and (2,0)
[tex]\frac{0-4}{2-0}[/tex]
solving that would come out to be [tex]\frac{-4}{2}[/tex]
simplified, that would be -2
now that we know the slope, we can put them into slope-intercept form
y=-2+4