The graph of a function f is given. Use the graph to answer the question.Is f(80) positive or negative?
A. negative
B. positive
Answer: B
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What is the domain of the function f(x) = ?x - 4
What will be an ideal response?
Determine whether the graph is that of a function. If it is, use the graph to find its domain and range, the intercepts, if any, and any symmetry with respect to the x-axis, the y-axis, or the origin.
A. function domain: all real numbers range: {y|y ? -3 or y ? 3} intercepts: (-3, 0), (3, 0) symmetry: y-axis B. function domain: {x|-3 ? x ? 3} range: all real numbers intercepts: (-3, 0), (3, 0) symmetry: x-axis, y-axis C. function domain: {x|x ? -3 or x ? 3} range: all real numbers intercepts: (-3, 0), (3, 0) symmetry: x-axis, y-axis, origin D. not a function
Determine whether the following is a trinomial square.x2 - 14x - 49
A. No B. Yes
Match the function to its graph.y = -tan x
A. 
B. 
C. 
D. 