Find any inflection points given the equation.f(x) = 
A. Inflection points at (-2, -2), (2, 2)
B. No inflection points
C. Inflection points at (0, 0), (-2, -2), (2, 2)
D. Inflection points at (0, 0), 
, 
Answer: D
Mathematics
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Find a linear model for the following data table. Round the slope to three decimal places, if necessary. x 4 5.67 7.34 9.01 ?y 6 12.6 19.2 25.8?
A. 
B. ?
C. ?
D. ?
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Rationalize the denominator and simplify. Assume all variables represent nonnegative real numbers.
A. 
B. 
C. 20
D. 3
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Determine if the graph of the function is concave up or concave down.y = -(x + 3)2
A. Concave up B. Concave down
Mathematics
Solve the system by graphing.
A. (-1, -4) B. (-2, -3) C. (-4, 1) D. (0, -4)
Mathematics