Use the vertical line test to determine whether or not the graph is a graph in which y is a function of x.
A. not a function
B. function
Answer: B
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A doctor orders 500 mg of medication in an IV infusion of 500 mL D5W, 0.006 mg/kg/min. The patient weighs 82 kg. The drop rate is 20 gtt/mL. Calculate the correct flow rate.
A. 96 gtt/min B. 15 gtt/min C. 12 gtt/min D. 10 gtt/min
Remove or add parentheses as indicated.Place parentheses to make the equation 
true.
A. (a + b) ? a + b = a2 + 2ab + b2 B. a + b ? (a + b) = a2 + 2ab + b2 C. (a + b) ? (a + b) = a2 + 2ab + b2 D. None needed.
The size of two matrices is given. Find the size of the product AB and the product BA, if the products exist.A is 2 × 4, B is 2 × 4.
A. AB is 2 × 4, BA is 4 × 2. B. AB is 4 × 2, BA is 2 × 4. C. AB is 2 × 2, BA is 4 × 4. D. AB is undefined, BA is undefined.
The graph of a one-to-one function f is given. Draw the graph of the inverse function f-1 as a dashed line or curve.f(x) = 2x
A. 
B. 