Find the y-intercepts for the parabola whose equation is given. If the y-intercepts are irrational, round your answers to the nearest tenth.y = 2x2 - 19x + 42
A. y-intercept (06)
B. y-intercept (0, 3.5)
C. y-intercept (0, -42)
D. y-intercept (0, 42)
Answer: D
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Provide an appropriate response.Explain why the following five statements ask for the same information.(a) Find the roots of f(x) = 2x3 - 4x - 5.(b) Find the x-coordinate of the points where the curve y = 2x3 crosses the line 
(c) Find all the values of x for which 2x3 - 4x = 5.(d) Find the x-coordinates of the points where the cubic curve y = 2x3 - 4x crosses the line 
(e) Solve the equation 2x3 - 4x - 5 = 0.
What will be an ideal response?
Write the quadratic equation in standard form. Determine the values of a, b, and c.2x (x - 9) = (x + 7) (x - 5)
A. - x2 + 20x - 35 = 0 a = -1, b = 20, c = -35 B. x2 - 20x = 35 a = 1, b = -20, c = 35 C. - x2 + 20x = -35 a = -1, b = 20, c = -35 D. x2 - 20x + 35 = 0 a = 1, b = -20, c = 35
Solve for x. Check your answer. If there is no solution, say so.
= 
A. x = 
B. x = 780
C. x = 
D. x = 
Solve the problem.In a sample of 70 widgets, 4 were defective. How many defective widgets would you expect in a sample of 420 widgets?
A. 27 widgets B. 22 widgets C. 24 widgets D. 54 widgets