Answer:
first u can notice that the graph is going down right?
then it must be -
so it cant be 2/3 or 3/2
then u are looking for a dot that is Integrates with the horizontal and vertical axis like( 0,-1)
u are going one to the right then going down till u touches the ax again if u notice u will go down -1.5 so the slope is -1.5
-3/2 is -1.5
so the slope is -1.5( -3/2)