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multiply each option by 6 and see if it equals 2.4</span>
The equation of a line is given by y = mx + c; where m is the slope.
The given equation is 9 - x = 2y
y = -1/2 x + 9/2
Therefore, the slope is -1/2 and the y-intercept is 9/2.
The measure of Angle ABD = measure of Angle ABC + measure of Angle CBD
