Answer
See the explanation
Work Step by Step
Isolate $y$ firstly by moving $3x$ to the right and dividing by $4$:
$$3x+4y=6$$
$$4y=-3x+6$$
$$y=-\frac34x+\frac64$$
$$y=-\frac34x+\frac32$$
Using Graphing calculator with standard view window $x\in[-10,10]~~y\in[-10,10]$, graph the line: