Use a graphing utility to find the equation of the line of best fit. Round to two decimal places, if necessary.
A. y = 1.79x - 1.86
B. y = 0.43x + 1.79
C. y = -1.86x + 1.79
D. y = 1.79x + 0.43
Answer: B
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Combine like terms.15x - 7y - 6x - 5y
A. 9x - 2y B. -9x - 12y C. -9x - 2y D. 9x - 12y
Multiply and express the product in lowest terms.
? 
A. 
B. 
C. y2
D. 
Solve the problem.The cost of tuition at a community college is given by C(x) = 490 + 54x, where x is the number of credit hours. Interpret the slope of this function as a rate of change.
A. The tuition at the community college increases by $54 for each additional credit hour. B. The tuition at the community college increases by $490 for each additional 54 credit hours. C. The tuition at the community college increases by $490 for each additional credit hour. D. The number of credit hours increases by 54 for each increase of $490 in tuition.
Factor when possible.x2 - 6x + 36
A. (x - 6)2 B. (x + 6)(x - 6) C. (x + 6)2 D. Prime