Verify the identity.
- 
= cos x - sin x
What will be an ideal response?
- 
= 
- 
= 
- 
= 
= 
= cos x - sin x
Mathematics
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Identify the equation without applying a rotation of axes.2x2 + 6xy + 9y2 + 2x - 3y + 1 = 0
A. ellipse B. hyperbola C. parabola D. not a conic
Mathematics
Simplify the expression. Express the answer so that all exponents are positive. Whenever an exponent is 0 or negative, we assume that the base is not 0.
-3
A. 
B. 
C. 
D. 
Mathematics
Write the equation of the quadratic function whose graph is a parabola containing the given points.(0, 3), (3, 15), (-3, 27)
A. y = 2x2 + 2x +1 B. y = 3x2 - 2x + 3 C. y = 2x2 - x + 3 D. y = 2x2 - 2x + 3
Mathematics
Answer the question.True or False: The graph of the equation x = -15 is a vertical line.
A. True B. False
Mathematics