Question

How many times does the line y=-1 touch the graph? (Ensure to draw your line on the graph)​

Answer 1

twice

Explanation:

y = - 1 is a horizontal line parallel to the x- axis and passing through all points with a y- coordinate of - 1

Drawing this line on the graph, from (0, - 1 ) we can see that it will intersect the graph at 2 places between (0, 0 ) and (2, - 2 ) and between (2, - 2 ) and (4, 0 )