Graph the function.f(x) = 
A. 
B. 
C. 
D. 
Answer: A
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Decide whether the given set of numbers is a group under the given operation.Integers; addition
A. Yes B. No
Solve the problem.Assume that a person's threshold weight W, defined as the weight above which the risk of death rises dramatically, is given by W(h) = 
3 , where W is in pounds and h is the person's height in inches. Find the threshold weight for a person who is 6 ft 3 in. tall. Round your answer to the nearest pound.
A. 226.7 lb B. 134.4 lb C. 221.5 lb D. 255 lb
Determine where the function is increasing and where it is decreasing.f(x) = -4x2 - 2x - 3
A. decreasing on 
increasing on 
B. increasing on 
decreasing on 
C. increasing on 
decreasing on 
D. increasing on 
decreasing on 
Determine the equation of the line described. Put answer in the slope-intercept form, if possible.Through (1, 5), perpendicular to x = -2
A. x = -2 B. y = -2 C. y = -5 D. y = 5