Mathematics for IGCSE & O level - Coordinate Geometry (Section 4 - No. 33)
What is the y-intercept of the line 5x - 2y = 10?
5
-5
2
-10
解释
Solve for y when x = 0: -2y = 10 => y = -5. However, we need the y-intercept, and to find the y-intercept we must set the x value to 0, and then solve for y. When setting x=0, -2y = 10, so y=-5