Find the equation of the least-squares regression line. Graph the line and data points on the same graph.
A. y = -0.2 + 1.75x
B. y = 6.01 + 2.2x
C. y = 9.3 + 0.95x
D. y = 10.1 + 1.67x
Answer: C
Mathematics
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Select the graph of the function: 
a. 
b. 
c. 
d. 
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Subtract.(7w4 - 8wz + 6wz2) - (4w4 + 3wz - 7wz2)
A. 11w4 + 11wz + 13wz2 B. 3w8 - 11w2z2 + 13w2z4 C. 3w4 - 11wz + 13wz2 D. 3w4 - 11w2z2 + 13wz2
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Rewrite the given expression without exponents.t4
A. t ? t ? t ? t
B. t + 4
C. t + t + t + t
D. 
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Graph the rational function and find the intercepts.f(x) = 
A. x-intercept: ±1. y-intercept: 
.
B. x-intercept: 1. y-intercept: 
.
C. x-intercept: ±1. y-intercept: 
.
D. x-intercept: 1. y-intercept: - 
.
Mathematics