Answer
Refer to the image below for the graph.
Work Step by Step
First, we need to write this equation in slope-intercept form to make the slope and y-intercept clear.
To isolate $y$ and its coefficient, we subtract $4x$ from both sides, giving
$5y=-4x+20$.
To completely isolate $y$, we divide both sides by 5, giving us
$y=\frac{-4}{5}x+\frac{20}{5}
\\y=-\frac{4}{5}x+4$.
To graph the line, we graph two points using the equation and then connect the dots. One point we can use is the y-intercept, which is $(0,4)$.
To find another point, we can set $x=5$ (any value for $x$ works) then solve for $y$:
$y=-\frac{4}{5}x+4
\\y=-\frac{4}{5}(5)+4
\\y=0$
The point is $(5,0)$.
Plot the two points then connect them using a line.
(refer to the image above for the graph)
