Which equation matches the given calculator-generated graph and description? Decide without using your calculator.
Parabola; opens right
A. -3y = x2
B. 3x = y2
C. -3x = y2
D. 3y = x2
Answer: B
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Rewrite the equation in standard form. Find the center and radius of the circle.x2 + y2 + 6x - 4y - 48 = 0
A. (x + 6)2 + (y - 4)2 = 4 center (-6, 4), r = 2 B. (x - 6)2 + (y + 4)2 = 4 center (-6, 4), r = 2 C. (x + 6)2 + (y - 4)2 = 4 center (6, -4), r = 2 D. (x - 6)2 + (y + 4)2 = 4 center (6, -4), r = 2
Simplify the expression. Assume all variables represent positive real numbers.
+ 
- 
A. 
B. 
C. 
D. 
Use transformations of the graph of y = x4 or y = x5 to graph the function.f(x) = -5x5 
A. 
B. 
C. 
D. 
Factor out the greatest common factor, or a negative common factor if the coefficient of the term of greatest degree is negative.-t9 - 19t4
A. -t4(t5 - 19) B. t(t8 - 19t3) C. t5(t4 - 19) D. -t4(t5 + 19)