In the linear equation y = mx + b, y-intercept represents the value of y. It is the point where the line crosses the y-axis(vertical axis)
Finding the y-intercept is done by looking at which point in the graph crosses the y-axis. This point will always have an x-coordinate of zero(0).
The ANGLE BISECTOR mentioned in the problem is simply just a line that separates an angle in half.
Meaning if it bisects ∠SUT which is 34. It just means that it divides the angle 34 into 2 equal parts.
Therefore ∠1 is just one-half of the ∠SUT.

Therefore the measurement of ∠1 is 17°.
Might be late but the first one is 125 and the seced one is less than :)
Answer:
A. 9
B. 7
Step-by-step explanation:
A. 11 - 2 = 9
B. 1 + 6 = 7