Y= 12 -3x so if you take x as 0 y=12 x=1 y=9 x=2 y=6
(0, 12) (1,9), (2,6) are on the graph
Answer
The value of x is 180 degrees
Explanation
you add 150 and 30 to get the value of X plus if you look carefully you can see that in the image x is at 180 degrees.
The Y-intercept is the point at which the graph intersects the y-axis
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