Answer:
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Step-by-step explanation:
Answer:
1.05 inches
Step-by-step explanation:
As the stretch varies directly with the amount of weight it means that a decrease in weight result in a proportional decrease of stretch.
Given the equation of parabola: y = -x² - 2x - 5
y = ax² + bx + c and negative value of 'a' tell us that it is a downward open parabola whose axis of symmetry would be x = k.
where k is the x-coordinate of vertex of given parabola.
Finding the vertex of parabola, x =
So, the axis of symmetry for this parabola is x = -1.