Give an appropriate answer.Find all points (x, y) at which the tangent plane to the graph 
is horizontal.
A. (0, 1)
B. (x, 1)
C. (x, 1), (x, -1)
D. (0, 1), (0, -1)
Answer: C
Mathematics
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Provide an appropriate response.Explain what happens when an integer is multiplied by 1, -1, and 0.
What will be an ideal response?
Mathematics
Solve the problem.Given that the polar equation r = 
models the orbits of planets about the sun, estimate the closest approach of a planet for which 
and 
to the sun.
A. 17 astronomical units B. 6 astronomical units C. 13 astronomical units D. 25 astronomical units
Mathematics
Simplify by rationalizing the denominator.
A. -1
B. -22
C. 
D. 
Mathematics
Multiply. Change any mixed number to an improper fraction before multiplying.1
× 
A. 1
B. 
C. 
D. 1
Mathematics