point-slope form

A vertical line that passes through the point (3, -2). Identify TWO additional points on the line. A vertical line runs straight up, so the x-coordinate is always the same. We use x = 3 and any y point: (3, -1) (3, 0) (3, 1)

Find an equation of the line containing the given pair of points (1,5) and (3,6). Using our point slope calculator, we get: y = 1/2x + 9/2

If the equation of a line passes through the points (1, 3) and (0, 0), which form would be used to write the equation of the line? Typing (1,3),(0,0) into the search engine, we get a point-slope form: y - 3 = 3(x - 1) If we want mx + b form, we have: y - 3 = 3x - 3 Add 3 to each side: y = 3x