Answer the question or write an explanation.Is the origin a good test point in graphing an inequality of the form Ax + By < 0? Why or Why not?
What will be an ideal response?
The origin is NOT a good test point because, for all values of A and B, it lies on the boundary line.
Mathematics
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Simplify the expression. Assume that all variables are positive.(25x4y8)1/2
A. 625x8y8
B. 
x2y4
C. 5x2y4
D. 25x2y4
Mathematics
Solve and check. Use the square root principle to eliminate the square.
2 = 405
A. -30 ± 45
B. 
C. 45
± -30
D. 30 ± 45
Mathematics
Solve the equation f(x) = 0 analytically and then use the graph of y = f(x) to solve the inequalities f(x) < 0 and 
f(x) = 5 log2 (2x) - 10
A. {4}; (0, 4); [4, ?) B. {2}; (0, 2); [2, ?) C. {2}; (2, ?); [0, 2) D. {2}; (-?, 2); [2, ?)
Mathematics
Eliminate the parameter to obtain a Cartesian equation of the curve.x = ln t, y = t, 0 < t < ?
A. y = ln x B. y = ex C. ex = ln y D. x = ey
Mathematics