Answer the question.How can you tell just by looking at a rational expression, if it is equal to -1?
What will be an ideal response?
The numerator and denominator are opposites of each other.
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Graph the function. Describe its position relative to the graph of the indicated basic function.f(x) = e-x + 2; relative to f(x) = ex
A. Moved left 2 units;
reflected across the y-axis
B. Reflected across the y-axis;
moved right 2 units
C. Reflected across the y-axis;
moved left 2 units
D. Moved right 2 units;
reflected across the y-axis
Multiply.600 ? 30
A. 18,010 B. 17,996 C. 18,000 D. 17,990
Rewrite the sum using sigma notation.
- 
+ 
- 
+ 
- 
A. 
B. 
C. 
D. 
Use the Urban Prices Index Table to answer the question. The table shows what $100 worth of an item costs today. 
*All figures are expressed as a percent of the base of 100 from two decades ago.Urban area: ChicagoWhat does $100 of Food and beverages cost today?
A. $219.20 B. $186.30 C. $202.30 D. $237.80