Lesson: Equation of a Straight Line: Parametric FormMathematics
In this lesson, we will learn how to find the equation of a straight line in parametric form using a point on the line and the vector direction of the line.
Sample Question Videos
Find the parametric equations of the straight line that passes through the point with direction vector .
Find the parametric equations of the straight line that makes an angle of with the positive -axis and passes through the point .
Consider the line shown that passes through the point and makes an angle of 45 degrees with the positive -axis.
Suppose that the distance between and any point on the line is .
Write, in terms of , an expression for the horizontal distance between the two points.
Write, in terms of , an expression for the vertical distance between the two points.
Hence, write a pair of parametric equations which describe the line.
Find the coordinates of the point on the line which is at a distance of 4 from .