Without graphing, determine whether the graph of the quadratic function opens up or opens down.f(x) = - 
x2 + 2x - 4
A. opens down
B. opens up
Answer: A
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Rewrite the subtraction problem as an addition problem.(-11) - (-11)
A. (-11) - (+11) B. (-11) + (-11) C. (-11) + (+11) D. None of the above
Translate to an equation and solve.846 is what percent of 94?
A. 90%
B. 9%
C. 
%
D. 900%
Find the perimeter.
A. 388 in. B. 319 in. C. 362 in. D. 414 in.
Solve the problem.You inherit $10,000 with the stipulation that for the first year the money must be invested in two stocks paying 6% and 11% annual interest, respectively. How much should be invested at each rate if the total interest earned for the year is to be $700?
A. $8000 invested at 6%; $2000 invested at 11% B. $2000 invested at 6%; $8000 invested at 11% C. $9000 invested at 6%; $1000 invested at 11% D. $7000 invested at 6%; $3000 invested at 11%