Find parametric equations for the line described below.The line through the point P(5, -1, -5) parallel to the vector 
A. x = 6t + 5, y = 5t - 1, z = -5t - 5
B. x = -6t - 5, y =5t + 1, z = -5t + 5
C. x = -6t + 5, y = 5t - 1, z = -5t - 5
D. x = 6t - 5, y = 5t + 1, z = -5t + 5
Answer: C
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Find all real numbers in the interval [0, 2?) that satisfy the equation. tan2 x = 3
A. 
B. 
C. 
D. 
Graph the equation using the slope and y-intercept.-2.8x + 1.5y = 6
A. 
B. 
C. 
D. 
Solve the problem.The population of a city in 2000 was 400,000 while the population of the suburbs of that city in 2000 was 900,000. Suppose that demographic studies show that each year about 5% of the city's population moves to the suburbs (and 95% stays in the city), while 4% of the suburban population moves to the city (and 96% remains in the suburbs). Compute the population of the city and of the suburbs in the year 2002. For simplicity, ignore other influences on the population such as births, deaths, and migration into and out of the city/suburban region.
A.
| City: | 361,000 |
B.
| City: | 430,560 |
C.
| City: | 361,000 |
D.
| City: | 416,000 |
Verify that the matrix is invertible and find its inverse.A =
A. A-1 = 
B. A-1 = 
C. A-1 = 
D. A-1 = 