Use the vertical line test to determine whether or not the graph is a graph in which y is a function of x.
A. not a function
B. function
Answer: B
Mathematics
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Give the measure of the requested angle.The supplement of angle x is two times the angle. Find the measure of the angle and its supplement.
A. 60° and 120° B. 30° and 60° C. 45° and 135° D. 45° and 90°
Mathematics
Give an appropriate answer.Show that the function r(?) = 3 cot ? + 
+ 7 has exactly one zero on the interval (0, ?).
What will be an ideal response?
Mathematics
Write the equation for the plane.The plane through the point P(10, 2, 8) and perpendicular to the line 
A. 4x + 9y - z = -50 B. 4x + 9y - z = 50 C. 4x + 9y + z = 50 D. 4x + 9y - z = 21
Mathematics
Determine if the stated number could represent a probability.-0.4
A. No B. Yes
Mathematics