Write the best-fit linear model for the data.Two separate tests are designed to measure a student's ability to solve problems. Several students are randomly selected to take both tests and the results are shown below. Find a linear function that approximates a student's score on Test B as a function of his or her score on Test A. 
A. y = 0.930 - 19.4x
B. y = 19.4 + 0.930x
C. y = -0.930 + 19.4x
D. y = -19.4 - 0.930x
Answer: B
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Write the slope-intercept form of the equation for the line passing through the given pair of points.(3, -4) and (7, -7)
A. y = 
x - 
B. y = 
x - 
C. y = - 
x - 
D. y = - 
x - 
Multiply. Write the answer as a mixed number as needed.5
? 
A. 1
B. 5
C. 
D. 1
Determine which purchase has the lower unit price.Brand A: 12 oz for $3.96Brand B: 15 oz for $5.55
A. Equal value B. Brand A C. Brand B D. Not enough information
If the following is a polynomial function, then state its degree and leading coefficient. If it is not, then state this fact.f(x) = 12 - 13x - 5x2 + 10x3 - 17x4
A. Degree: 12; leading coefficient: -17 B. Degree: 4; leading coefficient: 12 C. Degree: 4; leading coefficient: -17 D. Not a polynomial function.