# Question 4 1 1 pts in the video example 43 quadratic

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Question 4   1 / 1 pts In the video , Example 29 , Equations in quadratic form : Substitute a linear binomial , which is located in the media section of Chapter 10 , the presenter states that the first step to simplify the quadratic expression given is to :
fill in the quadratic formula Correct ! substitute y for w – 1 multiplying both sides by – 1 factor out a w – 1 from each term
Question 5   1 / 1 pts In the example for finding the dimensions of a rectangular table top presented in the slideshow , Applications , towards the top of the list in the media section of Chapter 10 , the presenter excludes the negative solution to the quadratic formula because it is not possible for the given practical application .
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Question 2   1 / 1 pts In the slideshow , Applications , towards the bottom of the list in the media section of Chapter 10 , the presenter demonstrates that for a value of 30 magazine subscriptions sold , Rico will have a positive profit .
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Question 3   1 / 1 pts In the video , Example 33 , Number of solutions , which is located in the media section of Chapter 10 , the presenter finds the discriminant of the equation given to be equal to :
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Question 4 1 / 1 pts In the video, Example 43, Quadratic inequalities that cannot be factored, which is located in the media section of Chapter 10, the presenter states that the given quadratic would open ________ because the value of a in the quadratic formula is _________. upward, negative Correct! upward, positive downward, positive downward, negative
Question 5 0 / 1 pts In the video, Example 7, Using the quadratic formula: Integer coefficients, which is located in the media section of Chapter 10, the a, b, and c values listed are:
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Quiz Score: 3 out of 5 The presenter of the video, Example 51, Finding maximum or minimum value of y, which is located in the media section of Chapter 10, the presenter states that if the sign of a in the equation of a parabola is negative the parabola opens upwards.