Use the graph of a quadratic function to find the solution set of the equation or inequality.-x2 + 6x - 9 < 0
A. (-?, ?)
B. x = 3
C. (-?, 3) ? (3, ?)
D. ?
Answer: C
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Write the English sentence as an equation in two variables. Then graph the equation.The y-value is one increased by the square of the x-value.
A. y = 1 - x2
B. y = 1 + x2
C. y = -1 + x2
D. y = 1 + 2x
Find a Cartesian equation for the parametric equations.x = 3t, y = t + 7
A. y = 
+ 7
B. y = 3x + 7
C. y = 
- 7
D. y = 
+ 7
Given that  figure 1.png)
, ?a=2x ?b=3x+70°, find the value of x.
 figure 1.png)
a. 22
b. –70
c. 4
d. 58
e. 70
The consumer price index (CPI) is calculated by averaging the prices of various items after assigning a weight to each item. The following table gives the consumer price indexes for selected years from 1940 through 2002, reflecting buying patterns of all urban consumers, with x representing years past 1900. Find an equation that models these data. If it's necessary, round your calculations to four decimal places. ? Year Consumer Price Index Year Consumer Price Index 1940 1950 1960 1970 14 24.1 29.6 38.8 1980 1990 2000 2002 82.4 130.7 172.2 179.9 ? Source: U.S. Bureau of the Census ?
A. 
B. 
C. 
D. 
E. 