#### Answer

True

#### Work Step by Step

To find the $x$-intercept of an equation of a graph, we plug in $0$ for $y$ and solve for $x$. We plug in $0$ for $y$ and apply the principles of equivalency to solve the equation for $x$: $$3x+4y=-12$$ $$3x+4(0)=-12$$ $$3x=-12$$ $$\frac{3x}{3}=-\frac{12}{3}$$ $$x=-4.$$ Since $x=-4$, the statement is true.