Mathematics for IGCSE & O level - Coordinate Geometry (Section 4 - No. 13)
Which of the following equations is in the general form of a straight line?
y = mx + c
ax + by + c = 0
y - y1 = m(x - x1)
y = ax^2 + bx + c
설명
The general form can be expressed as y = mx + c and ax + by + c = 0. The form y - y1 = m(x - x1) is the point-slope form.