For the piecewise function, find the specified function value.f(x) = {f(-2)

A. -10
B. -3
C. -7
D. 10


Answer: A

Mathematics

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Sketch the graph of the function. Describe how the graph can be obtained from the graph of a basic exponential function.f(x) = 3x + 1

A. Shift y = 3up 1 unit(s)

B. Shift y = 3up 1 unit(s)

C. Shift y = 3down 1 unit(s)

D. Shift y = 3down 1 unit(s)

Mathematics

Without graphing, describe the shape of the graph of the function and complete the ordered pairs  and f(x) = 70.6x

A. The graph lies below the x-axis, falls from right to left, with the negative  as a horizontal asymptote; 
B. The graph lies above the x-axis, rises from left to right, with the negative  as a horizontal asymptote; 
C. The graph lies below the x-axis, rises from left to right, with the negative  as a horizontal asymptote; 
D. The graph lies above the x-axis, falls from left to right, with the negative  as a horizontal asymptote; 

Mathematics

Solve the problem.The decay of 978 mg of an isotope is given by  where t is time in years. Find the amount left after 

A. 144 B. 946 C. 140 D. 72

Mathematics

Express the indicated number in standard notation or trigonometric notation, as directed.Express the indicated number in standard notation. 

A. 4 - 4i B. 4 + 4i C. -4 - 4i D. -4 + 4i

Mathematics