## Calculus with Applications (10th Edition)

If the point $(3,-1)$ is intersected by the line $$y=-2x+5$$ then it must satisfy the equation. Test by substituting this $(x,y)$ pair into the equation: $$-1=-2(3)+5=-6+5=-1$$ Since $-6+5=-1$, the point satisfies the equation and is intersected by the line.