Graph the exponential function.y = 4-x 
A. 
B. 
C. 
D. 
Answer: D
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If r(t) is the position vector of a particle in the plane at time t, find the indicated vector.Find the acceleration vector.r(t) = (cos 5t)i + (4 sin t)j
A. a = (-5 cos 5t)i + (4 sin t)j B. a = (-25 cos 5t)i + (-4 sin t)j C. a = (-25 cos 5t)i + (-16 sin t)j D. a = (25 cos 5t)i + (-4 sin t)j
Find the derivative of the function by using the definition.y = 
A. - 
B. - 
C. - 
D. 
Find all specified roots.Seventh roots of 1.
A. 1, cis 
, cis 
, cis 
, cis 
, cis 
, cis 
B. -1, cis 
, cis 
, cis 
, cis 
, cis 
, cis 
C. 1, cis 
, cis 
, cis 
, cis 
, cis 
, cis 
D. 1, cis 
, cis 
, cis 
, cis 
, cis 
, cis 
, -1
Determine whether the function is one-to-one. If it is one-to-one find an equation or a set of ordered pairs that defines the inverse function of the given function.
A. one-to-one; 
B. one-to-one; 
C. not one-to-one
D. one-to-one; 