rockieroad10261 rockieroad10261
  • 11-10-2020
  • Mathematics
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58. Graph the function y=x^2+3x-18. How many real roots does the function have?

59. In #58, what value or values of the roots satisfy the function (if any exist)

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sqdancefan
sqdancefan sqdancefan
  • 11-10-2020

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Answer:

  58. 2 real roots; see attached for a graph

  59. -6, 3

Step-by-step explanation:

58. A graphing calculator graphs this easily. The graph is shown in the attachment. There are 2 x-intercepts, hence 2 real roots.

__

59. The x-intercepts are (-6, 0) and (3, 0), so the x-values x=-6 and x=3 satisfy the equation y = 0.

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