Without graphing, determine whether the graph of the quadratic function opens up or opens down.f(x) = - 
x2 + 3x - 2
A. opens up
B. opens down
Answer: B
Mathematics
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Find the square root.
A. 12 B. 24 C. 13 D. 72
Mathematics
Provide an appropriate response.What is the y-intercept for the graph of the function f(x) = 2x - 1?
A. (2, 0)
B. (0, 2)
C. (0, 
)
D. (0, 1)
Mathematics
Multiply the polynomials using the FOIL method. Express the answer as a single polynomial in standard form.(x - 2y)(x + 10y)
A. x + 8xy - 20y B. x2 + 5xy - 20y2 C. x2 + 8xy - 20y2 D. x2 + 8xy + 8y2
Mathematics
Determine whether the given function is one-to-one. If it is one-to-one, find a formula for the inverse.f(x) = 
A. f-1(x) = x3 - 27
B. f-1(x) = x3 + 27
C. Not one-to-one
D. f-1(x) = 
Mathematics