# Ch10. Straight Lines

In this self study course, you will learn brief recall of two dimensional geometry from earlier classes. Shifting of origin. Slope of a line and angle between two lines. Various forms of equations of a line: parallel to axis, point -slope form, slope-intercept form, two-point form, intercept form and normal form. General equation of a line. For further understanding of concepts and for examination preparation, this course has explanation of all NCERT Exercise questions and important NCERT examples.