Answer:
x = 0.954
Step-by-step explanation:
We apply pythagorean to find x
(4-x)² = 1.2² + 2.8²
(4-x)² = 9.28
✓(4-x)² = ✓(9.28)²
4 - x = 3.046
- x = 3.046 - 4
- x = -0.954
x = 0.954
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Answer:
There is a horizontal tangent at (0,-4)
The tangent is vertical at (-2,-3) and (2,-3).
Step-by-step explanation:
The given function is defined parametrically by the equations:
and
The tangent function is given by:
The tangent is vertical at when
When t=1,
and
When t=-1,
and
The tangent is vertical at (-2,-3) and (2,-3).
The tangent is horizontal, when or
When t=0,
and
There is a horizontal tangent at (0,-4)
