Answer
The $y$-intercept is $4$.
The slope is $m=-3$.
Refer to the graph below.
Work Step by Step
In a line's equation in slope-intercept form, which is $y=mx+b$, the constant $b$ is the $y$-intercept while the coefficient of $x$, which is $m$, is the slope.
Thus, in $y=-3x+4$ we have:
$y$-intercept is $4$
slope=$m=-3$.
Plot the point $(0, 4)$.
The slope is $-3$ so from $(0, 4)$, move $1$ unit to the right and $3$ units downward to have $(1, 1)$.
Connect the points using a straight line.
