Write the following in interval notation.{x| x ? -9}
A. (-?,-9]
B. [-9,-?)
C. (?,-9]
D. [-9,?)
Answer: A
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Solve the inequality. Give the solution set in both set-builder notation and graph form.x - 2 > 2 or x + 2 < 1
A. 
B. 
C. 
D. 
Write a system of equations associated with the augmented matrix. Do not try to solve.
= 
A. 2x + y = -3 x + 2y = 2 -5x - 5y = 2 B. 2x + y + z = -3 x - 5y = 2 C. 2x = -3 x + y = 2 -5x - 5y = 2
Determine whether the relation represents a function. If it is a function, state the domain and range.
A. function domain: {3, 4, 5, 6} range: {12, 16, 20, 24} B. function domain:{12, 16, 20, 24} range: {3, 4, 5, 6} C. not a function
By graphing the function, visually estimate its domain and range.t(x) = 
A. Domain: (-?, 7]; range: (-?, 7] B. Domain: (-?, ?); range: (-?, ?) C. Domain: [7, ?); range: [7, ?) D. Domain: (-?, 7]; range: [0, ?)