Solve the linear equation with the intersection-of-graphs method. Approximate the solution to the nearest hundredth if necessary.8x + 6.7 = 3.7
A. 0.45
B. 1.3
C. -0.37
D. 0.38
Answer: C
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Solve the equation 
for ?y. Round your answers to two decimal places, if necessary.
?
A. 
or 
B. 
or 
C. 
or 
D. None of the above.
Solve the problem.Find the inflection points (if any) on the graph of the function and the coordinates of the points on the graph where the function has a local maximum or local minimum value. Then graph the function in a region large enough to show all these points simultaneously. Add to your picture the graphs of the function's first and second derivatives.y = x3 - 15x2
What will be an ideal response?
Determine if the given value is a solution to the given equation.12,
4(x - 6) = 25
A. Yes B. No
Solve the problem.A railroad tunnel has the shape of half an ellipse. The height of the tunnel at the center is 42 ft and the vertical clearance must be 6 ft at a point 12 ft from the center. Find an equation for the ellipse, where x and y are measured in ft. 
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1