In this video, the steps to solve question 18 in grade 9 practice in finding out if the slope of a line is negative.
Question:
Which of the following lines whose equations are given below has a negative slope?
a) \( \quad 2x - 2y = 0 \) b) \( 3x + 6y = 9 \) c) \( - y = 9 \) d) \( - y = - x + 3 \)