What is the reference angle for 120ﾟ

60° is the reference angle for 120°.

Step-by-step explanation:

For an angle, lets say ∅, which lies in any of the four quadrants, an acute angle which can be formed with its terminal side and the x axis is known as the reference angle.

So for an angle of 120 degrees, if we draw it on a graph, the acute angle which is made with the x axis will be 60° (180° - 120° = 60°).

the slope of the line is 60

one point on the line is (40,10)

step-by-step explanation:

in the equation outside the parenthesis the equation always tells you the slope. in this case it is 60.

in the parenthesis is also says 40 which is x because it is near the x and 10 is y because it is near y.