Provide an appropriate response.
When might the intercepts method not be the best method to graph lines? Will the intercepts method work for graphing parabolas?
What will be an ideal response?
Answers will vary.
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Solve the problem.A plane is flying at a constant altitude of 6 miles and a constant speed of 400 miles per hour on a straight course that will take it directly over an observer on the ground. How fast is the angle of elevation of the observer's line of sight changing when the horizontal distance from her to the plane is d miles and the plane is moving away from her? Give your answer in radians per hour in terms of d.
A. - rads/hr
B. - rads/hr
C. - rads/hr
D. - rads/hr
Solve the given differential equation (where the function is subject to the given conditions) by using Laplace transforms.y" + 4y' + 4y = e-2t, y = 1, y'
= 4
A. y = e2t
B. y = e-2t
C. y = e-2t
D. y = e-2t
Find the LCD for the rational expression.,
A. (x + 1)(3x - 1) B. (x - 1)(3x + 1) C. 3x - 1 D. x + 1
Solve the quadratic inequality. Graph the solution.v2 + 3v - 4 ? 0
A. [1, ?)
B. [-4, 1]
C. (-?, -4] ? [1, ?)
D. (-?, -4]