Find an equation of the tangent line at x = a.y = x2 - x; a = -3
A. y = -7x + 9
B. y = -7x + 6
C. y = -7x - 6
D. y = -7x - 9
Answer: D
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Use the maximum/minimum finder on a graphing calculator to determine the approximate location of all local extrema.f(x) = x4 - 4x3- 53x2 - 86x - 80
A. Approximate local maximum at 1.032; approximate local minima at -3.255 and 7.098 B. Approximate local maximum at 1.027; approximate local minima at -3.126 and 7.188 C. Approximate local maximum at -0.944; approximate local minima at -3.192 and 7.136 D. Approximate local maximum at 1.029; approximate local minima at -3.282 and 7.138
Test the vector field F to determine if it is conservative.F = 
i + 
j - 
k
A. Not conservative B. Conservative
Use the distributive property to multiply. Then, if possible, simplify the resulting expression.4(a + b)
A. 4ab B. 8ab C. 4a + 4b D. 4a + b
Solve the system by the addition method.
A. {(0, 1)}
B. {(x, y) 
}
C. {(1, 0)}
D. ?