Use the discriminant to determine the number of real roots the equation has.
2x² – 4x + 2 =0
A) One real root (a double root)
B) Two distinct real roots
C) Three real roots
D) None (two imaginary roots)
A) One real root (a double root)
Mathematics
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Find all numbers that are not in the domain of the function. Then give the domain using set notation.f(x) = 
A. 3; {x|x ? 3}
B. 0; {x|x ? 0}
C. 0, 15; {x|x ? 0, 15}
D. 
; 
Mathematics
Determine whether the graph is the graph of a function.
A. Yes B. No
Mathematics
Set up an integral for the length of the curve.x = y1/7, 0 ? y ? 2
A. 
B. 
C. 
D. 
Mathematics
For the given Cartesian equation, write an equivalent polar equation.x2 + y2 - 4x = 0
A. r cos2 ? = 4 sin ? B. r = 4 sin ? C. r sin2 ? = 4 cos ? D. r = 4 cos ?
Mathematics