Find the angle of inclination of each of the following lines. Express your answers in degrees rounded to the hundredths.

Question

1. x + y = 2

2. 4y = 9

3. 6x – 6y = 5

4. x = 5

Answer 1

1 -45 (slope of -1)

2 0 (slope of 0)

3 45 (slope of 1)

4 90 (infinite slope, undefined)

angles in degrees with the x axis