Answer:
[tex]y=-2x+3[/tex]
Step-by-step explanation:
Notice that with the provided information they are given you not ust the slope of the line (-2), but also the y-intercept (the point where the line crosses the y-axis which happens when x=0).
So you can directly write the equation of the line in slope-intercept form [[tex]y=mx+b[/tex] where "m" is the slope and "b" the y-value when x=0].
Such gives us:
[tex]y=-2x+3[/tex]