19. In the equation y= mx + b, m represent the slope, and b represent the y-intercept. Given the
equation y = -5x – 2, Which of the following is the y-intercept?
A. 2
B.-2
C. 5
D.-5
20. Which of the following is a linear equation in two variables?
A. X2 + 2y = 1
B. 2x + y = 3
C. x + y = 1
D. y = 3x + b