Perpendicular Lines and the equation of a tangent

$A\,$ is the point $(0, 1)$

$B\,$ is the point $(10, 6)$

The equation of the straight line through $A\,$ and $B\,$ is $y=12x+1\displaystyle y = \frac{1}{2}x + 1$

Identify the gradient and y-intercept in the equation $y = m x + c$ .

1 of 5

A line has equation $y = - 4 x + 7$ . What is the gradient of a line perpendicular to it?

$A\,$ is the point $(0, 1)$

$B\,$ is the point $(10, 6)$

The equation of the straight line through $A\,$ and $B\,$ is $y=12x+1\displaystyle y = \frac{1}{2}x + 1$

Identify the gradient and y-intercept in the equation $y = m x + c$ .

A line has equation $y = - 4 x + 7$ . What is the gradient of a line perpendicular to it?

Perpendicular Lines and the equation of a tangent Revision Guide