Solve the problem.Let the distance from home in miles of a person after t hours on a straight path be given by 
Approximate the average rate of change of s from 
to 
to the nearest tenth and interpret the result.
A. about 8.2; average speed is about 8.2 mi/hr
B. about 3.7; average speed is about 3.7 mi/hr
C. about 2.8; average speed is about 2.8 mi/hr
D. about 2.6; average speed is about 2.6 mi/hr
Answer: B
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Solve.A young married couple had a combined annual income of $49,000. If the wife made $3000 more than the husband, graph the system to find the two incomes.
A. Wife's income: $43,000 Husband's income: $6000 B. Wife's income: $6000 Husband's income: $43,000 C. Wife's income: $26,000 Husband's income: $23,000 D. Wife's income: $23,000 Husband's income: $26,000
Factor completely.x2 + 2xy - 24y2
A. (x - 6y)(x + y) B. (x + 6y)(x - 4y) C. (x - 6y)(x + 4y) D. (x - y)(x + 4y)
Use the following graph to answer the question.
What is the maximum normal February temperature in Midwestville?
A. -2°F B. 21°F C. 35°F D. -7°F
Find the slope of the line through the given pair of points.(-9, 1) and (-9, -4)
A. 0
B. - 
C. 
D. undefined