In Exercises 1 and 2, use the figure, which shows two lines whose equations are y1 = m1x + b1 and y2 = m2x + b2. Assume that both lines have positive slopes. Derive a formula for the angle between the two lines. Then use your formula to find the angle between the given pair of lines.

1. y = x and y = ˆš3x
2. y = x and y x / ˆš3

Transcribed Image Text:

|У - тх+ b 9. 2 4 |У2— трх + bz 4.