Since the function is shifting 4 units down, it will be moving down the y axis, meaning the y-intercept will decrease by 4.
y=mx+b is the formula for the straight line, where b is the y-intercept. The y-intercept in this function is -12, so we would just subtract -4 from -12 to get our answer.
The answers are <span>I. Two pairs of opposite angles congruent. II. A pair of adjacent angles are supplementary. </span> <span>VIII. The diagonals bisect each other. </span>