Determine the slope and y-intercept of the function.f(x) = 
x + 1
A. m = 
; b = - 1
B. m = 1; b = 
C. m = 
; b = 1
D. m = - 
; b = - 1
Answer: C
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The following table shows the number C, in millions, of cars sold in the U.S. t years after 2005. Explain in practical terms the meaning of the slope of the regression line. t 0 1 3 5 C 5.58 5.48 5.25 4.58? ?
A. Sales are increasing by 0.19 million cars per year. B. Sales are decreasing by 0.19 million cars per year. C. Sales are increasing by 0.10 million cars per year. D. Sales are decreasing by 0.10 million cars per year.
Use the order of operations to evaluate each problem.
A. 60 B. 24 C. 22 D. 36
Solve.The cost of renting a certain type of car is $31 per day plus $0.08 per mile. Find a linear function that expresses the cost C of renting a car for one day as a function of the number of miles driven x.
A. C(x) = 0.08x + 31x B. C(x) = (x + 0.08) + 31 C. C(x) = 31x + 0.08 D. C(x) = 0.08x + 31
Perform the operation by applying the standard order of operations for a series of calculations.28 + 2 × 4
A. 36 B. 168 C. 120 D. 20