Fill in the blank with one of the words or phrases listed below. 
A(n) 
is a part of a line with one endpoint and extends indefinitely in one direction.
A. line segment
B. transversal
C. perimeter
D. ray
Answer: D
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Find the derivative of the function at P0 in the direction of u.f(x, y) = 5x + 2y, P0(6, 4), u = 4i - 3j
A. 
B. 
C. 2
D. 6
Determine whether the graphs of the equations are parallel lines, perpendicular lines, or neither.y = 2x - 38x + 4y = 8
A. Perpendicular B. Parallel C. Neither
Solve the problem using inductive reasoning.Write the next three "triangular" figurate numbers.
Fill in the blank(s) with the appropriate word(s).
Let x represent the number. Write the English phrase as an algebraic expression. Then simplify the expression, if possible.-3 times the sum of a number and 29.
A. (-3 + x) ? 29; -87 + 29x B. -3x + 29; cannot be simplified C. -3(x + 29); -3 + 29x D. -3(x + 29); -3x - 87