Verify that the values of the variables listed are solutions of the system of equations.
x = -4, y = -1
A. solution
B. not a solution
Answer: A
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Find the domain and range of the function.f(x) = -5 + 
A. D: (-?, ?), R: [-5,?) B. D: (-?,0], R: (-?,-5] C. D: [0,?), R: [-5,?) D. D: [0,?), R: (-?, ?)
Find the range of the data set.11.2, 7.6, 8.5, 6.3, 9.1
A. 8.8 B. 4.9 C. 11.2 D. 8.1
This model is of the form f(x) = mx + b. Determine what m and b signify.The cost, in dollars, of a one-day car rental is given by 
where x is the number of miles driven.
A. $0.19 is the cost per day to rent the car and $28 is the cost per mile. B. $28 is the cost per day to rent the car and $0.19 is the cost per mile. C. $28 is the cost per day to rent the car and $19 is the extra cost for unlimited miles. D. $19 is the cost per day to rent the car and $0.28 is the cost per mile.
Express the number in scientific notation.78,000,000
A. 7.8 × 10-8 B. 7.8 × 10-7 C. 7.8 × 108 D. 7.8 × 107