Mathematics for IGCSE & O level - Coordinate Geometry (Section 4 - No. 46)
Which of the following equations represents a line passing through (2, 3) and (-1, 0)?
y = x + 1
y = -x + 5
y = 2x - 1
y = x - 1
Vysvětlení
Calculate the gradient, then substitute into a point-slope form or slope-intercept form to determine the equation.