Solve the inequality. Other than ?, graph the solution set on a number line.
? 4 + 
A. (-?, 15]
B. [-15, ?)
C. [15, ?)
D. (15, ?)
Answer: C
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Find the x- and y- intercepts.x = 4
A. (4, 0), no y-intercept B. No x-intercept, (0, 4) C. (-4, 0), no y-intercept D. No x-intercept, no y-intercept
In a certain city there is a river running through the middle of the city. There are three islands and seven bridges as shown in the figure below.
Which of the following statements is true?
A. The graph that models this situation has an Euler circuit. B. The graph that models this situation has an Euler path starting on the South Bank and ending on the North Bank. C. No edge in the graph that models this situation is actually a bridge. D. All of these are true. E. None of these are true.
Show that the matrix has no inverse.
What will be an ideal response?
Find the axis of symmetry of the given function.f(x) = -3x2 + 2x
A. x = -1
B. x = - 
C. x = - 
D. x = 