Determine whether the function is a one-to-one function.y = 
, x ? -4
A. Yes
B. No
Answer: A
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Find a polynomial function of lowest degree with rational coefficients that has the given numbers as some of its zeros.-
, -2i
A. f(x) = x4 - 45x2 - 28 B. f(x) = x4 + 3x2 - 28 C. f(x) = x4 + 3x2 + 14 D. f(x) = x4 - 3x2 - 28
Solve the following system by any appropriate method. If there is no real number solution, so state.
- 
= 1x + y = 7
A. (2, 3), (-16, 25) B. (3, 4), (-17, 24) C. (3, 10), (-17, -10) D. (2, 4), (-16, 24)
Solve.Molly has $5.70 in coins. She has five more nickels than dimes. She has seven fewer quarters than dimes. How many quarters does she have?
A. 18 quarters B. 16 quarters C. 11 quarters D. 23 quarters
The augmented matrix is given for a system of equations. If the system is consistent, find the general solution. Otherwise state that there is no solution. 
A. x1 = -7 - 4x2 - 5x4 x2 is free x3 = -4 - 4x4 x4 is free B. x1 = -7 - 4x2 - 5x3 x2 = -4 - 4x3 x3 is free C. x1 = - 4x2 +2x3 + 3 x4 + 1 x2 is free x3 = -4 - 4x4 x4 is free D. x1 = -7 - 4x2 - 5x4 x2 is free x3 = -4 - 4x4 x4 = 0