The values of x when y = -1 are approximately
Attached Figure / Diagram
A
-10 and 2.0
B
-1.3 and 2.3
C
-0.6 and 2.6
D
-0.6 and 1.6
E
1.6 and 1.6
Verified Correct Answer: D.
Step-by-Step Mathematical Solution
Draw a straight line from y = -1 to meet the curve on both sides. From the point where the straight line touches the curve, draw a line from there to meet the x-axis, then read off the values.
So when y = -1, x = - 0.6 or 1.6
Source: Myschool Past Questions Archive (Record #26346)