If the set W is a vector space, find a set S of vectors that spans it. Otherwise, state that W is not a vector space.W is the set of all vectors of the form 
, where a and b are arbitrary real numbers.
A. 
, 
B. 
, 
, 
C. Not a vector space
D. 
, 
Answer: D
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Find parametric equations for the line described below.The line through the point P(-4, -5, 4) and perpendicular to the plane 
A. x = -1t - 4, y = 4t - 5, z = 4t + 4 B. x = 1t + 4, y = -4t + 5, z = -4t - 4 C. x = -1t + 4, y = 4t + 5, z = 4t - 4 D. x = -4t - 4, y = -1t - 5, z = 4
Find the equation of the hyperbola with center 
, 
and 
style="vertical-align: middle;" data-wiris-created="true" varid="variable_id_field" variablename="impvar_d491eed150be4fc9801815ca2" />.
?
A. 
B. 
C. 
D. 
E. 
In calculus, it is frequently important to write an expression in the form
, where c is a constant and n is a rational number. Write the expression in this form.
?
?
A. 
B. 
C. 
D. 
E. 
Combine like terms.4x - 6x
A. -2x B. 10x C. -2x2 D. 2x