QUESTIONS 46–50 PERTAIN TO THE FOLLOWING SITUATION

15. The correct answer is (D). The right branch of the graph has slope 1 and y-intercept of 1.

Hence, its equation is y = x + 1.

To the left of x = –1, this line, y = x + 1, continues below the y-axis. We reflect it above the x-axis by

making the equation y = |x + 1|.