Determine whether the slope of the line is positive, negative, zero, or undefined.
A. negative
B. undefined
C. zero
D. positive
Answer: D
Mathematics
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For the given slope of line l1, (a) find the slope of line a l2 parallel to l1, and (b) find the slope of a line l3 perpendicular to l1.m = - 
A. (a) 6; (b) - 
B. (a) 9; (b) - 
C. (a) - 
; (b) 6
D. (a) 
; (b) -6
Mathematics
Find the product, if possible. 
A. 
B. 
C. 
D. 
Mathematics
Use a graphing utility to graph the curve defined by the given parametric equations.x = t + 2, y = 3t - 1; 0 ? t ? 3
A. 
B. 
C. 
D. 
Mathematics
Determine the continuity of the function at the given points.f(x) = 
at x = 1 and x = 0
A. The function f is continuous at 
but not at 
B. The function f is continuous at 
but not at 
C. The function f is continuous at neither 
nor 
D. The function f is continuous at both 
and 
Mathematics