Which equation does not represent y as a function of x?
?
A. ?2x = 8y
B. -4y = -8
C. ?5x2 + 5y = 3
D. ?3x + 6y = -5
E. ?7y2 + 8x= 9
Answer: E
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Factor completely. If a polynomial is prime, then state this as your answer.x3(t3 - 343) + y3(t3 - 343)
A. (x + y)(x2 - xy + y2)(t + 343)(t2 - 1) B. (x + y)(x2 - xy + y2)(t - 7)(t2 + 7t + 49) C. (x + y)(x2 - xy + y2)(t + 7)(t2 - 7t + 49) D. (x + y)(x2 - xy + y2)(t - 7)(t2 + 49)
Solve by the substitution method. 3x - 13 = -y2x + 9y = -8
A. {(-5, -2)} B. {(-5, 2)} C. {(5, 2)} D. {(5, -2)}
Sketch a continuous curve that has the given characteristics.(a) Defined for all real numbers(b) Increasing for -3 < x < 3(c) Decreasing for -? < x < -3 and 3 < x < ?(d) Concave downward for 0 < x < ?(e) Concave upward for -? < x < 0(f) f'(-3) = f'(3) = 0(g) Inflection point at (0, 0) 
What will be an ideal response?
Find the phase shift of the function.y = cos 
A. 
units down
B. 
units up
C. 
units to the left
D. 
units to the right