The line $y=ax+b$ is perpendicular to the line $y+4x=3$ and meets the line $2y+x=20$ at the po

Question

The line $y=ax+b$ is perpendicular to the line $y+4x=3$ and meets the line $2y+x=20$ at the point $A$ on the $x$-axis. Find the values of $a$ and of $b$.

Accepted Answer

$a=\dfrac14,\quad b=-5$

Analytic Geometry: Linear Relationships and Gradient Theory

Analytic Geometry: Linear Relationships and Gradient Theory

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