Line $A$ is defined by $y = 4x + 3$ and line $B$ is defined by $y = 4$, and they intersect at a point, $D$. Line $C$, which has the\u00a0equation\u00a0$y = mx + 1$, intersects line $A$ and $B$ at $D$, and the line $y = ax$ is perpendicular to line $C$. Find $m + a$ as a common fraction.<\/p>\n","protected":false},"excerpt":{"rendered":"
Line $A$ is defined by $y = 4x + 3$ and line $B$ is defined by $y = 4$, and they intersect at a point, $D$. Line $C$, which has the\u00a0equation\u00a0$y = mx + 1$, intersects line $A$ and $B$ … Continue reading