Solve the equation using the quadratic formula.3x2 = -8x - 1
A. 
B. 
C. 
D. 
Answer: A
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Suppose that the functions f and g and their derivatives with respect to x have the following values at the given values of x. Find the derivative with respect to x of the given combination at the given value of x.
f2(x) ? g(x), x = 3
A. 55 B. 84 C. 15 D. 31
At what point is the following function a local maximum?
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Perform the indicated operation. Simplify if possible.
- 
A. 0 B. 36 C. 3x D. 6
Solve the problem. Write all linear equations in slope-intercept form.A driver wants to gauge the fuel efficiency of her vehicle at speeds of 30 mph and above. She notices that traveling at an average speed of 45 mph results in a rating of 39 mpg, whereas at an average speed of 50 mph, her car rates 29 mpg. Find a linear equation to model the gas mileage y for an average speed of x mph. Find the slope-intercept form of the equation of the line.
A. y = - 2x + 129
B. y = 
x + 51
C. y = - 2x + 51
D. y = 
x + 129