Mathematics for IGCSE & O level - Coordinate Geometry (Section 1 - No. 50)

A line has a y-intercept of 4 and a gradient of -2. What is the equation of the line?

y = 4x - 2

y = -2x + 4

y = -2x - 4

y = 2x + 4

Using the slope-intercept form: y = mx + c. Where m = -2 (gradient) and c = 4 (y-intercept)