Solve the system of equations using substitution.
A. x = 8, y = -7; x = 7, y = -8
or (8, -7), (7, -8)
B. x = 8, y = 7; x = 7, y = 8
or (8, 7), (7, 8)
C. x = -8, y = -7; x = -7, y = -8
or (-8, -7), (-7, -8)
D. x = -8, y = 7; x = -7, y = 8
or (-8, 7), (-7, 8)
Answer: B
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If so, approximate the extended function's value at 
(rounded to four decimal places if necessary). If not, determine whether the function can be continuously extended from the left or from the right and provide the values of the extended functions at 
Otherwise write "no continuous extension."f(x) = (1 + 2x)1/x
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A. y = 
B. y = -9x
C. y = - 
D. y = 9x
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About how many students would you expect to prefer TV in a school of 500 students?
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Answer the following statement true (T) or false (F)